Products > Drilling Equipment
Brief Introduction
KW is professionally engaged in diamond bit research & development, design, manufacturing, sales and technical services. It possesses not only advanced diamond bit design & manufacturing techniques but also advanced manufacturing equipment. It has high-technology talents coming back from abroad and high-qualified skilled technicians engaged in diamond bit manufacturing for more than 20 years.
We can make various kinds of diamond drill bits and core bits form 4″ to 171/2″, and can research, develop, design and manufacture special purpose diamond bits according to customer’s requirements.
It has established perfect product quality systems, and has been certified under ISO9001:2000 Quality System. We design diamond bit by using self-developed advanced Computer Aided Design (CAD), PRO-E 3 D design, and computer full size drill bit resultant force & single cutter force and work analysis computing technologies. The diamond bits made by us are completely in compliance with API and SY/T5217-2000 Standards.
It always carries forward its concepts of “Good Faith, Customer Orientation, High Quality, Perfection & Innovation, and Contributions & Honors”. We aim to provide our customers with high quality products and excellent services, with highest performance-price ratio products on purpose. It will grow and develop with its customers.
Diamond Bit Nomenclature Guide
Diamond Core Bit:Number of Blades、Formation Grade、Cutter Size、Crown Profile、Character
81/2 F 4 4 5 6 HY
Character:A:Auto-Antiwhirt H:Mixed cutter
B:Bi-Center M:Milling/Grind
R:Reaming cutter D:Aid cutter
Y:decompression cutter S:Side/Directional
T:tine & round cutter P:Character design
U:importation cutter E:Part of importation cutter
-H:horizontal well
Crown Profile 1~7 parabola(long—short)
8— round 9— taper 0— abnormity
cutters size:Ø16 PDC cutters
PDC Cutters TSP Cutters Nature Diamond(/ct)
Ø8 —2 3—3 10~12—9
Ø10 —3 4—4 8—8
、 Ø13—4 5—5 5—5
Ø16—5 6—6 4—4
Ø19—6 8—8 2—2
Ø25—8 10—9 1—1
>Ø25—9
Formation Grade:4 class (1~9 class))
Number of Blades:4 (3~9 0—10 1—11 2—12 )
Type:PDC Type TSP Type Nature Diamond Type
F—Flurry S—TSP cutter D—Nature Diamond
G—Gale
W—Whirlwind
T—Typhoon
Bits size(inch):OD
Diamond Core Bit Nomenclature Guide
Diamond Core Bit:Number of Blades、Formation Grade、Cutter Size、Crown Profile
8 1/2×4 PC 2 4 4 9
Crown Profile 1~7 parabola(long—short)
8— round 9— taper 0— abnormity
cutters size:Ø13 PDC cutters
PDC Cutters TSP Cutters Nature Diamond(/ct)
Ø8 —2 3—3 10~12—9
Ø10 —3 4—4 8—8
、 Ø13—4 5—5 5—5
Ø16—5 6—6 4—4
Ø19—6 8—8 2—2
Ø25—8 10—9 1—1
>Ø25—9
Formation Grade:4 class (1~9 class)
Number of Blades:4 (3~9 0—10 1—11 2—12 )
Type:PDC Type TSP Type Nature Diamond Type Impregnated Type
PC SC DC IC
Bits Size(inch):OD×ID
Bits Selection Guide
Formation Rock Type Formation Grade Bits Type
Ultra soft formations with low compressive strength and sticky layers Humous Gumbo Clay Marl
1~2 ×4××
Soft formations with low compressive strength and high drill ability Marl Salt Anhydrite Shale 2~3 ×4××
Soft to medium formations with low compressive strength Sand Shale Chalk 2~4 ×4××
Soft-medium to hard formations with high compressive strength and low abrasiveness Shale Mudstone Limestone Sandstone 3~5 ×5××
Hard and dense formations with high compressive strength but not abrasive Shale Limestone Anhydrite 4~6 ×5××
×6××
Hard dense and abrasive formations with ultra high compressive strength Siltstone Sandstone Mudstone 6~8 ×6××
×8××
Ultra hard and abrasive formations Quartzite Volcanic 8≥ ×8××
Bits Type/IADC code:F4446 / M432
Short parabola Crown Profile,Ø13 cutters,Power of counterpoise design;
reparable nozzles & immobility nozzles,gage of smooth design;
Such as suitable for Formation Grade of four classes hard;
Such as clay,marl,sand,shale and salt。
DESING PARAMETERS OPERATING PARAMETERS
Size
(in) Total length(mm) Gage
Length(mm) Nozzle Net weight(kg) Number of blades API
Shank(in) WOB(kn) RPM Flow rate(l/s)
3 7/8 325 38 4F 16 4 23/8REG 5-25 90-360 8-20
41/2 340 38 4F 20 4 27/8REG 5-30 90-360 8-20
57/16 340 38 2R+2F 23 4 31/2REG 5-35 90-360 10-24
57/8 360 38 2R+2F 28 4 31/2REG 10-35 90-360 12-28
6 380 38 4R 29 4 31/2REG 10-40 90-280 15-30
61/2 380 38 4R 29 4 31/2REG 10-40 90-280 15-30
Bits Type/IADC code:F4455D / M422
Short parabola Crown Profile,Ø16 cutters,Power of counterpoise design;
Adopt aid cutters design;
reparable nozzles or immobility nozzles,gage of smooth design;
Such as suitable for Formation Grade of four classes hard;
Such as clay,marl,sand,shale and salt。
DESING PARAMETERS OPERATING PARAMETERS
Size
(in) Total length(mm) Gage
Length(mm) Nozzle Net weight(kg) Number of blades API
Shank(in) WOB(kn) RPM Flow rate(l/s)
8 425 55 4R 50 4 41/2REG 15-85 90-360 28-40
81/2 425 55 4R 54 4 41/2REG 20-90 90-360 32-44
9 480 65 4R 66 4 41/2REG 20-105 90-360 34-46
91/2 480 65 5R 72 4 65/8REG 22-110 90-280 38-50
Bits Type/IADC code:F4455HB / M422
Short parabola Crown Profile,Ø16 cutters,Power of counterpoise design;
reparable nozzles or immobility nozzles,gage of smooth design;
Adopt aid cutters design;
hrough-hole diameterØ210,Expand the hole diameter Ø220,broaching bit;
Such as suitable for Formation Grade of four classes hard;
Such as clay,marl,sand,shale and salt。
DESING PARAMETERS OPERATING PARAMETERS
Size
(in) Total length(mm) Gage
Length(mm) Nozzle Net weight(kg) Number of blades API
Shank(in) WOB(kn) RPM Flow rate(l/s)
83/4 445 55 4R 60 4 41/2REG 20-90 90-360 32-44
Bits Type/IADC code:F4456 HY/ M422
Short parabola Crown Profile,Ø16 & Ø19 cutters,Power of counterpoise design;
Mixed cutter & decompression cutters design;
reparable nozzles or immobility nozzles,gage of smooth design;
Such as suitable for Formation Grade of four classes hard ;
Such as clay,marl,sand,shale and salt。
DESING PARAMETERS OPERATING PARAMETERS
Size
(in) Total length(mm) Gage
Length(mm) Nozzle Net weight(kg) Number of blades API
Shank(in) WOB(kn) RPM Flow rate(l/s)
8 425 55 4R 52 4 41/2REG 15-85 90-360 28-40
81/2 425 55 4R 56 4 41/2REG 20-90 90-360 32-44
9 460 65 4R 66 4 41/2REG 20-105 90-360 34-46
91/2 460 65 5R 72 4 65/8REG 22-110 90-280 38-50
Bits Type/IADC code:F4465Y /IADC M432
Short parabola Crown Profile,Ø19 cutters,Power of counterpoise design;
decompression cutters design;
reparable nozzles,gage of smooth design;
Such as suitable for Formation Grade of four classes hard;
Such as clay,marl,sand,shale and salt。
DESING PARAMETERS OPERATING PARAMETERS
Size
(in) Total length(mm) Gage
Length(mm) Nozzle Net weight(kg) Number of blades API
Shank(in) WOB(kn) RPM Flow rate(l/s)
8 425 55 4R 52 4 41/2REG 15-85 90-360 28-40
81/2 425 55 4R 56 4 41/2REG 20-90 90-360 32-44
9 460 65 4R 66 4 41/2REG 20-105 90-360 34-46
91/2 460 65 5R 72 4 65/8REG 22-110 90-280 38-50
Bits Type/IADC code:F4466D / M422
Short parabola Crown Profile,Ø19 cutters,Power of counterpoise design;
Adopt aid cutters design;
reparable nozzles,gage of smooth design;
Such as suitable for Formation Grade of four classes hard ;
Such as clay,marl,sand,shale and salt。
DESING PARAMETERS OPERATING PARAMETERS
Size
(in) Total length(mm) Gage
Length(mm) Nozzle Net weight(kg) Number of blades API
Shank(in) WOB(kn) RPM Flow rate(l/s)
8 425 55 4R 50 4 41/2REG 15-85 90-360 28-40
81/2 425 55 4R 56 4 41/2REG 20-90 90-360 32-44
9 460 65 4R 64 4 41/2REG 20-105 90-360 34-46
91/2 460 65 5R 70 4 65/8REG 22-110 90-280 38-50
Bits Type/IADC code:F5556 / M522
Short parabola Crown Profile,Ø16 cutters,Power of counterpoise design;
reparable nozzles or immobility nozzles,gage of smooth design;
Such as suitable for Formation Grade of five classes hard;
Such as Shale,Limestone,Sand,Anhydrite。
DESING PARAMETERS OPERATING PARAMETERS
Size
(in) Total length(mm) Gage
Length(mm) Nozzle Net weight(kg) Number of blades API
Shank(in) WOB(kn) RPM Flow rate(l/s)
8 435 55 5R 53 5 41/2REG 15-90 90-240 28-40
81/2 435 55 5R 59 5 41/2REG 20-100 90-240 32-44
91/2 460 65 5R 73 5 65/8REG 22-115 90-210 38-50
121/4 530 75 7R 140 5 65/8REG 25-145 70-180 46-80
Bits Type/IADC code:F5556D / M522
Short parabola Crown Profile,Ø16 cutters,Power of counterpoise design;
Adopt aid cutters design
reparable nozzles or immobility nozzles,gage of smooth design;
Such as suitable for Formation Grade of five classes hard;
Such as Shale,Limestone,Sand,Anhydrite。
DESING PARAMETERS OPERATING PARAMETERS
Size
(in) Total length(mm) Gage
Length(mm) Nozzle Net weight(kg) Number of blades API
Shank(in) WOB(kn) RPM Flow rate(l/s)
8 435 55 5R 53 5 41/2REG 15-90 90-240 28-40
81/2 435 55 5R 59 5 41/2REG 20-100 90-240 32-44
91/2 460 65 5R 73 5 65/8REG 22-115 90-210 38-50
121/4 530 75 7R 140 5 65/8REG 25-145 70-180 46-80
Bits Type/IADC code:F5558DR / M522
Rond Crown Profile,Ø16 cutters,Power of counterpoise design;
Adopt aid cutters design
reparable nozzles or immobility nozzles,gage of smooth design;
Such as suitable for Formation Grade of five classes hard;
Such as Shale,Limestone,Sand,Anhydrite。
DESING PARAMETERS OPERATING PARAMETERS
Size
(in) Total length(mm) Gage
Length(mm) Nozzle Net weight(kg) Number of blades API
Shank(in) WOB(kn) RPM Flow rate(l/s)
8 435 55 6R 53 5 41/2REG 15-90 90-240 28-40
81/2 435 55 6R 59 5 41/2REG 20-100 90-240 32-44
91/2 460 65 7R 73 5 65/8REG 22-115 90-210 38-50
121/4 530 75 9R 140 5 65/8REG 25-145 70-180 46-80
Bits Type/IADC code:F5558DR-H / M522
Rond Crown Profile,Ø16 cutters,Power of counterpoise design;
Adopt aid cutters design
reparable nozzles or immobility nozzles,gage of smooth design;
Such as suitable for Formation Grade of five classes hard;
Such as Shale,Limestone,Sand,Anhydrite。
DESING PARAMETERS OPERATING PARAMETERS
Size
(in) Total length(mm) Gage
Length(mm) Nozzle Net weight(kg) Number of blades API
Shank(in) WOB(kn) RPM Flow rate(l/s)
8 435 55 7R 53 5 41/2REG 15-90 90-240 28-40
81/2 435 55 7R 59 5 41/2REG 20-100 90-240 32-44
91/2 460 65 7R 73 5 65/8REG 22-115 90-210 38-50
121/4 530 75 9R 140 5 65/8REG 25-145 70-180 46-80
Bits Type/IADC code:F5566 / M522
Short parabola Crown Profile,Ø19 cutters,Power of counterpoise design;
reparable nozzles or immobility nozzles,gage of smooth design;
Such as suitable for Formation Grade of five classes hard;
Such as Shale,Limestone,Sand,Anhydrite。
DESING PARAMETERS OPERATING PARAMETERS
Size
(in) Total length(mm) Gage
Length(mm) Nozzle Net weight(kg) Number of blades API
Shank(in) WOB(kn) RPM Flow rate(l/s)
8 435 55 5R 53 5 41/2REG 15-90 90-240 28-40
81/2 435 55 5R 59 5 41/2REG 20-100 90-240 32-44
91/2 460 65 5R 73 5 65/8REG 22-115 90-210 38-50
121/4 530 75 7R 140 5 65/8REG 25-145 70-180 46-80
Bits Type/IADC code:F5566D / M522
Short parabola Crown Profile,Ø19 cutters,Power of counterpoise design;
Adopt aid cutters design;
reparable nozzles or immobility nozzles,gage of smooth design;
Such as suitable for Formation Grade of five classes hard;
Such as Shale,Limestone,Sand,Anhydrite。
DESING PARAMETERS OPERATING PARAMETERS
Size
(in) Total length(mm) Gage
Length(mm) Nozzle Net weight(kg) Number of blades API
Shank(in) WOB(kn) RPM Flow rate(l/s)
8 435 55 5R 53 5 41/2REG 15-90 90-240 28-40
81/2 435 55 5R 59 5 41/2REG 20-100 90-240 32-44
91/2 460 65 5R 73 5 65/8REG 22-115 90-210 38-50
121/4 530 75 7R 140 5 65/8REG 25-145 70-180 46-80
Bits Type/IADC code:F5556 HY/ M522
Short parabola Crown Profile,Ø16 and Ø19 cutters,Power of counterpoise design;
Mixed cutter & decompression cutters design;
reparable nozzles,gage of smooth design;
Such as suitable for Formation Grade of five classes;
Such as Shale,Limestone,Sand, Anhydrite。
DESING PARAMETERS OPERATING PARAMETERS
Size
(in) Total length(mm) Gage
Length(mm) Nozzle Net weight(kg) Number of blades API
Shank(in) WOB(kn) RPM Flow rate(l/s)
8 435 55 5R 53 5 41/2REG 15-90 90-240 28-40
81/2 435 55 5R 59 5 41/2REG 20-100 90-240 32-44
91/2 490 65 5R 73 5 65/8REG 22-115 90-210 38-50
121/4 530 75 7R 106 5 65/8REG 25-145 70-180 46-80
Bits Type/IADC code:F6556/ M522
Short parabola Crown Profile,Ø16 cutters,Power of counterpoise design;
reparable nozzles & tine nozzles,gage of smooth design;
Such as suitable for Formation Grade of five classes;
Such as Shale,Limestone,Sand, Anhydrite。
DESING PARAMETERS OPERATING PARAMETERS
Size
(in) Total length(mm) Gage
Length(mm) Nozzle Net weight(kg) Number of blades API
Shank(in) WOB(kn) RPM Flow rate(l/s)
8 435 55 3R+3F 53 6 41/2REG 15-90 90-240 28-40
81/2 435 55 3R+3F 59 6 41/2REG 20-100 90-240 32-44
91/2 490 65 7R 73 6 65/8REG 22-115 90-210 38-50
121/4 530 75 9R 106 6 65/8REG 25-145 70-180 46-80
Bits Type/IADC code:F6556DR/ M522
Short parabola Crown Profile,Ø16 cutters,Power of counterpoise design;
Adopt aid cutters design;
reparable nozzles & tine nozzles,gage of smooth design;
Such as suitable for Formation Grade of five classes;
Such as Shale,Limestone,Sand, Anhydrite。
DESING PARAMETERS OPERATING PARAMETERS
Size
(in) Total length(mm) Gage
Length(mm) Nozzle Net weight(kg) Number of blades API
Shank(in) WOB(kn) RPM Flow rate(l/s)
8 435 55 3R+3F 53 6 41/2REG 15-90 90-240 28-40
81/2 435 55 3R+3F 59 6 41/2REG 20-100 90-240 32-44
91/2 490 65 7R 73 6 65/8REG 22-115 90-210 38-50
121/4 530 75 9R 106 6 65/8REG 25-145 70-180 46-80
Bits Type/IADC code:F6556T/ M522
Short parabola Crown Profile,Ø16 round cutters & tine cutters,Power of counterpoise design;
Round cutters & tine cutters mixed design;
reparable nozzles & immobility nozzles,gage of smooth design;
Such as suitable for Formation Grade of five classes;
Such as Shale,Limestone,Sand, Anhydrite。
DESING PARAMETERS OPERATING PARAMETERS
Size
(in) Total length(mm) Gage
Length(mm) Nozzle Net weight(kg) Number of blades API
Shank(in) WOB(kn) RPM Flow rate(l/s)
8 435 55 3R+3F 53 6 41/2REG 15-90 90-240 28-40
81/2 435 55 3R+3F 59 6 41/2REG 20-100 90-240 32-44
91/2 490 65 7R 73 6 65/8REG 22-115 90-210 38-50
121/4 530 75 9R 106 6 65/8REG 25-145 70-180 46-80
Bits Type/IADC code:G4456 HY/ M422
Short parabola Crown Profile,Ø16 & Ø19 cutters,Power of counterpoise design;
Mixed cutter and decompression cutters design;
helix blade,helix cutters;
reparable nozzles or immobility nozzles,gage of smooth design;
Such as suitable for Formation Grade of four classes;
Such as clay,marl,sand,shale and salt。
DESING PARAMETERS OPERATING PARAMETERS
Size
(in) Total length(mm) Gage
Length(mm) Nozzle Net weight(kg) Number of blades API
Shank(in) WOB(kn) RPM Flow rate(l/s)
8 425 55 4R 50 4 41/2REG 15-85 90-360 28-40
81/2 425 55 4R 56 4 41/2REG 20-90 90-360 32-44
9 480 65 4R 64 4 41/2REG 20-105 90-360 34-46
91/2 460 65 4R+1F 70 4 65/8REG 22-110 90-280 38-50
Bits Type/IADC code:G4455D / M422
Short parabola Crown Profile,Ø16 cutters,Power of counterpoise design;
Adopt aid cutters design;
helix blade,helix cutters;
reparable nozzles,gage of smooth design;
Such as suitable for Formation Grade of four classes;
Such as clay,marl,sand,shale and salt。
DESING PARAMETERS OPERATING PARAMETERS
Size
(in) Total length(mm) Gage
Length(mm) Nozzle Net weight(kg) Number of blades API
Shank(in) WOB(kn) RPM Flow rate(l/s)
8 425 55 4R 52 4 41/2REG 15-85 90-360 28-40
81/2 425 55 4R 56 4 41/2REG 20-90 90-360 32-44
9 460 65 4R 66 4 41/2REG 20-105 90-360 34-46
91/2 460 65 5R 72 4 65/8REG 22-110 90-280 38-50
Bits Type/IADC code:G5556 / M522
Short parabola Crown Profile,Ø16 cutters,Power of counterpoise design;
decompression cutters design;
helix blade,helix cutters;
reparable nozzles,gage of smooth design;
Such as suitable for Formation Grade of five classes;
Such as Shale,Limestone,Sand, Anhydrite。
DESING PARAMETERS OPERATING PARAMETERS
Size
(in) Total length(mm) Gage
Length(mm) Nozzle Net weight(kg) Number of blades API
Shank(in) WOB(kn) RPM Flow rate(l/s)
8 435 55 5R 53 5 41/2REG 15-90 90-240 28-40
81/2 435 55 5R 59 5 41/2REG 20-100 90-240 32-44
91/2 490 65 5R 73 5 65/8REG 22-115 90-210 38-50
121/4 530 75 7R 106 5 65/8REG 25-145 70-180 46-80
Bits Type/IADC code:G5566 / M522
Short parabola Crown Profile,Ø19 cutters,Power of counterpoise design;
helix blade,helix cutters;
reparable nozzles ,gage of smooth design;
Such as suitable for Formation Grade of five classes;
Such as Shale,Limestone,Sand,Anhydrite。
DESING PARAMETERS OPERATING PARAMETERS
Size
(in) Total length(mm) Gage
Length(mm) Nozzle Net weight(kg) Number of blades API
Shank(in) WOB(kn) RPM Flow rate(l/s)
8 435 55 5R 53 5 41/2REG 15-90 90-240 28-40
81/2 435 55 5R 59 5 41/2REG 20-100 90-240 32-44
91/2 490 65 5R 73 5 65/8REG 22-115 90-210 38-50
121/4 530 75 7R 106 5 65/8REG 25-145 70-180 46-80
Bits Type/IADC code:G5568S / M521
Rond Crown profile,Ø19 cutters,Power of counterpoise design;
helix blade,helix cutters;
reparable nozzles,gage of smooth design;
Such as suitable for Formation Grade of five classes;
Such as Shale,Limestone,Sand,Anhydrite。
DESING PARAMETERS OPERATING PARAMETERS
Size
(in) Total length(mm) Gage
Length(mm) Nozzle Net weight(kg) Number of blades API
Shank(in) WOB(kn) RPM Flow rate(l/s)
8 405 55 5R 47 5 41/2REG 15-85 90-360 28-40
81/2 405 55 5R 53 5 41/2REG 20-90 90-360 32-44
91/2 460 65 5R 67 5 65/8REG 22-110 90-280 38-50
121/4 500 75 7R 91 5 65/8REG 25-125 70-240 46-80
Bits Type/IADC code:G4468SR / M421
Rond Crown profile,Ø19 cutters,Power of counterpoise design;
helix blade,helix cutters;
reparable nozzles,gage of smooth design;
Such as suitable for Formation Grade of four classes;
Such as Shale,Limestone,Sand,Anhydrite。
DESING PARAMETERS OPERATING PARAMETERS
Size
(in) Total length(mm) Gage
Length(mm) Nozzle Net weight(kg) Number of blades API
Shank(in) WOB(kn) RPM Flow rate(l/s)
8 395 40 4R 47 4 41/2REG 15-85 90-360 28-40
81/2 395 40 4R 53 4 41/2REG 20-90 90-360 32-44
91/2 440 40 4R 67 4 65/8REG 22-110 90-280 38-50
105/8 480 40 6R 91 4 65/8REG 25-125 70-240 46-80
Bits Type/IADC code:G5568SR / M521
Rond Crown profile,Ø19 cutters,Power of counterpoise design;
helix blade,helix cutters;
reparable nozzles,gage of smooth design;
Such as suitable for Formation Grade of five classes;
Such as Shale,Limestone,Sand,Anhydrite。
DESING PARAMETERS OPERATING PARAMETERS
Size
(in) Total length(mm) Gage
Length(mm) Nozzle Net weight(kg) Number of blades API
Shank(in) WOB(kn) RPM Flow rate(l/s)
8 395 40 5R 47 5 41/2REG 15-85 90-360 28-40
81/2 395 40 5R 53 5 41/2REG 20-90 90-360 32-44
91/2 440 40 5R 67 5 65/8REG 22-110 90-280 38-50
105/8 480 40 7R 91 5 65/8REG 25-125 70-240 46-80
Bits Type/IADC code:PC2449 / M431
Cone crown profile of short,Ø13 cutters,Power of counterpoise design;
fastness nozzles,gage of slot design;
Such as suitable for Formation Grade of four classes;
Such as clay,marl,sand,shale and salt。
DESING PARAMETERS OPERATING PARAMETERS
Size
(in) Total length(mm) Gage
Length(mm) Nozzle Net weight(kg) Number of blades API
Shank(in) WOB(kn) RPM Flow rate(l/s)
77/8×4 403 38 6F 26 12 250P/川8-4 15-45 60-130 12-24
81/4×41/8 403 38 6F 29 12 250P/川8-4 15-45 60-130 12-24
81/2×4 403 38 6F 29 12 250P/川8-4 15-45 60-130 12-24
81/2×41/8 403 38 6F 29 12 250P/川8-4 15-45 60-130 12-24
Bits Type/IADC code:IC8838 / M841
Rotundity crown profile,gage of slot design;
Such as suitable for Formation Grade of six and upwards classes;
Such as Ultra hard and abrasive formations;
Such as Silstone,Sandstone,Quartzite,Volcanic。
DESING PARAMETERS OPERATING PARAMETERS
Size
(in) Total length(mm) Gage
Length(mm) Nozzle Net weight(kg) Number of blades API
Shank(in) WOB(kn) RPM Flow rate(l/s)
77/8×4 380 38 0 24 18 250P 15-55 50-130 12-24
81/2×4 380 38 0 27 18 250P 15-60 50-130 12-24
81/2×41/8 380 38 0 27 18 250P 15-60 50-130 12-24
T.F.A values of Nozzles Sizes (mm2)
NozzleSize
1/32″(mm) Number of Nozzles
1 2 3 4 5 6 7 8 9 10
6#(4.76) 17.8 35.61 53.41 71.26 89.02 106.83 124.63 142.44 160.24 178.05
7#(5.56) 24.25 48.49 72.74 96.99 121.23 145.48 169.73 193.97 218.22 242.46
8#(6.35) 31.67 63.34 95.01 126.68 158.35 190.02 221.68 253.35 285.02 316.69
9#(7.14) 40.08 80.16 120.24 160.32 200.40 240.48 280.56 320.64 360.72 400.80
10#(7.94) 49.48 98.96 148.44 197.92 247.40 296.88 346.36 395.84 445.32 494.80
11#(8.73) 59.87 119.74 179.61 239.48 299.35 359.22 419.09 478.96 538.83 598.70
12#(9.53) 71.26 142.52 213.78 285.04 356.30 427.56 498.82 570.08 641.34 712.60
13#(10.32) 83.63 167.26 250.89 334.52 418.15 501.78 585.41 669.04 752.67 836.30
14#(11.11) 96.99 193.98 290.97 387.96 484.95 581.94 678.93 775.92 872.91 969.90
15#(11.91) 111.34 222.68 334.02 445.36 556.70 668.04 779.38 890.72 1000.1 1113.4
16#(12.70) 126.68 253.36 380.04 506.72 633.40 760.08 886.76 1013.4 1140.1 1266.8
17#(13.49) 143.01 286.02 429.03 572.04 715.05 858.06 1001.1 1144.1 1287.1 1430.1
18#(14.29) 160.33 320.66 480.99 641.32 801.65 961.98 1122.3 1282.6 1443.0 1603.3
19#(15.08) 178.63 357.26 535.89 714.52 893.15 1071.8 1250.4 1429.0 1607.7 1786.3
20#(15.88) 197.93 395.86 593.79 791.72 989.65 1187.6 1385.5 1583.4 1781.4 1979.3
21#(16.69) 218.22 436.44 654.66 872.88 1091.1 1309.3 1527.5 1745.8 1964.0 2182.2.
22#(17.46) 239.5 479.00 718.50 958.00 1197.5 1437.0 1676.5 1916.0 2155.5 2395.0
Brief Introduction
KW is professionally engaged in diamond bit research & development, design, manufacturing, sales and technical services. It possesses not only advanced diamond bit design & manufacturing techniques but also advanced manufacturing equipment. It has high-technology talents coming back from abroad and high-qualified skilled technicians engaged in diamond bit manufacturing for more than 20 years.
We can make various kinds of diamond drill bits and core bits form 4″ to 171/2″, and can research, develop, design and manufacture special purpose diamond bits according to customer’s requirements.
It has established perfect product quality systems, and has been certified under ISO9001:2000 Quality System. We design diamond bit by using self-developed advanced Computer Aided Design (CAD), PRO-E 3 D design, and computer full size drill bit resultant force & single cutter force and work analysis computing technologies. The diamond bits made by us are completely in compliance with API and SY/T5217-2000 Standards.
It always carries forward its concepts of “Good Faith, Customer Orientation, High Quality, Perfection & Innovation, and Contributions & Honors”. We aim to provide our customers with high quality products and excellent services, with highest performance-price ratio products on purpose. It will grow and develop with its customers.
Diamond Bit Nomenclature Guide
Diamond Core Bit:Number of Blades、Formation Grade、Cutter Size、Crown Profile、Character
81/2 F 4 4 5 6 HY
Character:A:Auto-Antiwhirt H:Mixed cutter
B:Bi-Center M:Milling/Grind
R:Reaming cutter D:Aid cutter
Y:decompression cutter S:Side/Directional
T:tine & round cutter P:Character design
U:importation cutter E:Part of importation cutter
-H:horizontal well
Crown Profile 1~7 parabola(long—short)
8— round 9— taper 0— abnormity
cutters size:Ø16 PDC cutters
PDC Cutters TSP Cutters Nature Diamond(/ct)
Ø8 —2 3—3 10~12—9
Ø10 —3 4—4 8—8
、 Ø13—4 5—5 5—5
Ø16—5 6—6 4—4
Ø19—6 8—8 2—2
Ø25—8 10—9 1—1
>Ø25—9
Formation Grade:4 class (1~9 class))
Number of Blades:4 (3~9 0—10 1—11 2—12 )
Type:PDC Type TSP Type Nature Diamond Type
F—Flurry S—TSP cutter D—Nature Diamond
G—Gale
W—Whirlwind
T—Typhoon
Bits size(inch):OD
Diamond Core Bit Nomenclature Guide
Diamond Core Bit:Number of Blades、Formation Grade、Cutter Size、Crown Profile
8 1/2×4 PC 2 4 4 9
Crown Profile 1~7 parabola(long—short)
8— round 9— taper 0— abnormity
cutters size:Ø13 PDC cutters
PDC Cutters TSP Cutters Nature Diamond(/ct)
Ø8 —2 3—3 10~12—9
Ø10 —3 4—4 8—8
、 Ø13—4 5—5 5—5
Ø16—5 6—6 4—4
Ø19—6 8—8 2—2
Ø25—8 10—9 1—1
>Ø25—9
Formation Grade:4 class (1~9 class)
Number of Blades:4 (3~9 0—10 1—11 2—12 )
Type:PDC Type TSP Type Nature Diamond Type Impregnated Type
PC SC DC IC
Bits Size(inch):OD×ID
Bits Selection Guide
Formation | Rock Type | Formation Grade | Bits Type |
Ultra soft formations with low compressive strength and sticky layers |
Humous Gumbo Clay Marl |
1~2 | ×4×× |
Soft formations with low compressive strength and high drill ability | Marl Salt Anhydrite Shale | 2~3 | ×4×× |
Soft to medium formations with low compressive strength | Sand Shale Chalk | 2~4 | ×4×× |
Soft-medium to hard formations with high compressive strength and low abrasiveness | Shale Mudstone Limestone Sandstone | 3~5 | ×5×× |
Hard and dense formations with high compressive strength but not abrasive | Shale Limestone Anhydrite | 4~6 |
×5×× ×6×× |
Hard dense and abrasive formations with ultra high compressive strength | Siltstone Sandstone Mudstone | 6~8 |
×6×× ×8×× |
Ultra hard and abrasive formations | Quartzite Volcanic | 8≥ | ×8×× |
Bits Type/IADC code:F4446 / M432
Short parabola Crown Profile,Ø13 cutters,Power of counterpoise design;
reparable nozzles & immobility nozzles,gage of smooth design;
Such as suitable for Formation Grade of four classes hard;
Such as clay,marl,sand,shale and salt。
DESING PARAMETERS | OPERATING PARAMETERS | ||||||||
Size (in) |
Total length(mm) |
Gage Length(mm) |
Nozzle | Net weight(kg) | Number of blades |
API Shank(in) |
WOB(kn) | RPM | Flow rate(l/s) |
3 7/8 | 325 | 38 | 4F | 16 | 4 | 23/8REG | 5-25 | 90-360 | 8-20 |
41/2 | 340 | 38 | 4F | 20 | 4 | 27/8REG | 5-30 | 90-360 | 8-20 |
57/16 | 340 | 38 | 2R+2F | 23 | 4 | 31/2REG | 5-35 | 90-360 | 10-24 |
57/8 | 360 | 38 | 2R+2F | 28 | 4 | 31/2REG | 10-35 | 90-360 | 12-28 |
6 | 380 | 38 | 4R | 29 | 4 | 31/2REG | 10-40 | 90-280 | 15-30 |
61/2 | 380 | 38 | 4R | 29 | 4 | 31/2REG | 10-40 | 90-280 | 15-30 |
Bits Type/IADC code:F4455D / M422
Short parabola Crown Profile,Ø16 cutters,Power of counterpoise design;
Adopt aid cutters design;
reparable nozzles or immobility nozzles,gage of smooth design;
Such as suitable for Formation Grade of four classes hard;
Such as clay,marl,sand,shale and salt。
DESING PARAMETERS | OPERATING PARAMETERS | ||||||||
Size (in) |
Total length(mm) |
Gage Length(mm) |
Nozzle | Net weight(kg) | Number of blades |
API Shank(in) |
WOB(kn) | RPM | Flow rate(l/s) |
8 | 425 | 55 | 4R | 50 | 4 | 41/2REG | 15-85 | 90-360 | 28-40 |
81/2 | 425 | 55 | 4R | 54 | 4 | 41/2REG | 20-90 | 90-360 | 32-44 |
9 | 480 | 65 | 4R | 66 | 4 | 41/2REG | 20-105 | 90-360 | 34-46 |
91/2 | 480 | 65 | 5R | 72 | 4 | 65/8REG | 22-110 | 90-280 | 38-50 |
Bits Type/IADC code:F4455HB / M422
Short parabola Crown Profile,Ø16 cutters,Power of counterpoise design;
reparable nozzles or immobility nozzles,gage of smooth design;
Adopt aid cutters design;
hrough-hole diameterØ210,Expand the hole diameter Ø220,broaching bit;
Such as suitable for Formation Grade of four classes hard;
Such as clay,marl,sand,shale and salt。
DESING PARAMETERS | OPERATING PARAMETERS | ||||||||
Size (in) |
Total length(mm) |
Gage Length(mm) |
Nozzle | Net weight(kg) | Number of blades |
API Shank(in) |
WOB(kn) | RPM | Flow rate(l/s) |
83/4 | 445 | 55 | 4R | 60 | 4 | 41/2REG | 20-90 | 90-360 | 32-44 |
Bits Type/IADC code:F4456 HY/ M422
Short parabola Crown Profile,Ø16 & Ø19 cutters,Power of counterpoise design;
Mixed cutter & decompression cutters design;
reparable nozzles or immobility nozzles,gage of smooth design;
Such as suitable for Formation Grade of four classes hard ;
Such as clay,marl,sand,shale and salt。
DESING PARAMETERS | OPERATING PARAMETERS | ||||||||
Size (in) |
Total length(mm) |
Gage Length(mm) |
Nozzle | Net weight(kg) | Number of blades |
API Shank(in) |
WOB(kn) | RPM | Flow rate(l/s) |
8 | 425 | 55 | 4R | 52 | 4 | 41/2REG | 15-85 | 90-360 | 28-40 |
81/2 | 425 | 55 | 4R | 56 | 4 | 41/2REG | 20-90 | 90-360 | 32-44 |
9 | 460 | 65 | 4R | 66 | 4 | 41/2REG | 20-105 | 90-360 | 34-46 |
91/2 | 460 | 65 | 5R | 72 | 4 | 65/8REG | 22-110 | 90-280 | 38-50 |
Bits Type/IADC code:F4465Y /IADC M432
Short parabola Crown Profile,Ø19 cutters,Power of counterpoise design;
decompression cutters design;
reparable nozzles,gage of smooth design;
Such as suitable for Formation Grade of four classes hard;
Such as clay,marl,sand,shale and salt。
DESING PARAMETERS | OPERATING PARAMETERS | ||||||||
Size (in) |
Total length(mm) |
Gage Length(mm) |
Nozzle | Net weight(kg) | Number of blades |
API Shank(in) |
WOB(kn) | RPM | Flow rate(l/s) |
8 | 425 | 55 | 4R | 52 | 4 | 41/2REG | 15-85 | 90-360 | 28-40 |
81/2 | 425 | 55 | 4R | 56 | 4 | 41/2REG | 20-90 | 90-360 | 32-44 |
9 | 460 | 65 | 4R | 66 | 4 | 41/2REG | 20-105 | 90-360 | 34-46 |
91/2 | 460 | 65 | 5R | 72 | 4 | 65/8REG | 22-110 | 90-280 | 38-50 |
Bits Type/IADC code:F4466D / M422
Short parabola Crown Profile,Ø19 cutters,Power of counterpoise design;
Adopt aid cutters design;
reparable nozzles,gage of smooth design;
Such as suitable for Formation Grade of four classes hard ;
Such as clay,marl,sand,shale and salt。
DESING PARAMETERS | OPERATING PARAMETERS | ||||||||
Size (in) |
Total length(mm) |
Gage Length(mm) |
Nozzle | Net weight(kg) | Number of blades |
API Shank(in) |
WOB(kn) | RPM | Flow rate(l/s) |
8 | 425 | 55 | 4R | 50 | 4 | 41/2REG | 15-85 | 90-360 | 28-40 |
81/2 | 425 | 55 | 4R | 56 | 4 | 41/2REG | 20-90 | 90-360 | 32-44 |
9 | 460 | 65 | 4R | 64 | 4 | 41/2REG | 20-105 | 90-360 | 34-46 |
91/2 | 460 | 65 | 5R | 70 | 4 | 65/8REG | 22-110 | 90-280 | 38-50 |
Bits Type/IADC code:F5556 / M522
Short parabola Crown Profile,Ø16 cutters,Power of counterpoise design;
reparable nozzles or immobility nozzles,gage of smooth design;
Such as suitable for Formation Grade of five classes hard;
Such as Shale,Limestone,Sand,Anhydrite。
DESING PARAMETERS | OPERATING PARAMETERS | ||||||||
Size (in) |
Total length(mm) |
Gage Length(mm) |
Nozzle | Net weight(kg) | Number of blades |
API Shank(in) |
WOB(kn) | RPM | Flow rate(l/s) |
8 | 435 | 55 | 5R | 53 | 5 | 41/2REG | 15-90 | 90-240 | 28-40 |
81/2 | 435 | 55 | 5R | 59 | 5 | 41/2REG | 20-100 | 90-240 | 32-44 |
91/2 | 460 | 65 | 5R | 73 | 5 | 65/8REG | 22-115 | 90-210 | 38-50 |
121/4 | 530 | 75 | 7R | 140 | 5 | 65/8REG | 25-145 | 70-180 | 46-80 |
Bits Type/IADC code:F5556D / M522
Short parabola Crown Profile,Ø16 cutters,Power of counterpoise design;
Adopt aid cutters design
reparable nozzles or immobility nozzles,gage of smooth design;
Such as suitable for Formation Grade of five classes hard;
Such as Shale,Limestone,Sand,Anhydrite。
DESING PARAMETERS | OPERATING PARAMETERS | ||||||||
Size (in) |
Total length(mm) |
Gage Length(mm) |
Nozzle | Net weight(kg) | Number of blades |
API Shank(in) |
WOB(kn) | RPM | Flow rate(l/s) |
8 | 435 | 55 | 5R | 53 | 5 | 41/2REG | 15-90 | 90-240 | 28-40 |
81/2 | 435 | 55 | 5R | 59 | 5 | 41/2REG | 20-100 | 90-240 | 32-44 |
91/2 | 460 | 65 | 5R | 73 | 5 | 65/8REG | 22-115 | 90-210 | 38-50 |
121/4 | 530 | 75 | 7R | 140 | 5 | 65/8REG | 25-145 | 70-180 | 46-80 |
Bits Type/IADC code:F5558DR / M522
Rond Crown Profile,Ø16 cutters,Power of counterpoise design;
Adopt aid cutters design
reparable nozzles or immobility nozzles,gage of smooth design;
Such as suitable for Formation Grade of five classes hard;
Such as Shale,Limestone,Sand,Anhydrite。
DESING PARAMETERS | OPERATING PARAMETERS | ||||||||
Size (in) |
Total length(mm) |
Gage Length(mm) |
Nozzle | Net weight(kg) | Number of blades |
API Shank(in) |
WOB(kn) | RPM | Flow rate(l/s) |
8 | 435 | 55 | 6R | 53 | 5 | 41/2REG | 15-90 | 90-240 | 28-40 |
81/2 | 435 | 55 | 6R | 59 | 5 | 41/2REG | 20-100 | 90-240 | 32-44 |
91/2 | 460 | 65 | 7R | 73 | 5 | 65/8REG | 22-115 | 90-210 | 38-50 |
121/4 | 530 | 75 | 9R | 140 | 5 | 65/8REG | 25-145 | 70-180 | 46-80 |
Bits Type/IADC code:F5558DR-H / M522
Rond Crown Profile,Ø16 cutters,Power of counterpoise design;
Adopt aid cutters design
reparable nozzles or immobility nozzles,gage of smooth design;
Such as suitable for Formation Grade of five classes hard;
Such as Shale,Limestone,Sand,Anhydrite。
DESING PARAMETERS | OPERATING PARAMETERS | ||||||||
Size (in) |
Total length(mm) |
Gage Length(mm) |
Nozzle | Net weight(kg) | Number of blades |
API Shank(in) |
WOB(kn) | RPM | Flow rate(l/s) |
8 | 435 | 55 | 7R | 53 | 5 | 41/2REG | 15-90 | 90-240 | 28-40 |
81/2 | 435 | 55 | 7R | 59 | 5 | 41/2REG | 20-100 | 90-240 | 32-44 |
91/2 | 460 | 65 | 7R | 73 | 5 | 65/8REG | 22-115 | 90-210 | 38-50 |
121/4 | 530 | 75 | 9R | 140 | 5 | 65/8REG | 25-145 | 70-180 | 46-80 |
Bits Type/IADC code:F5566 / M522
Short parabola Crown Profile,Ø19 cutters,Power of counterpoise design;
reparable nozzles or immobility nozzles,gage of smooth design;
Such as suitable for Formation Grade of five classes hard;
Such as Shale,Limestone,Sand,Anhydrite。
DESING PARAMETERS | OPERATING PARAMETERS | ||||||||
Size (in) |
Total length(mm) |
Gage Length(mm) |
Nozzle | Net weight(kg) | Number of blades |
API Shank(in) |
WOB(kn) | RPM | Flow rate(l/s) |
8 | 435 | 55 | 5R | 53 | 5 | 41/2REG | 15-90 | 90-240 | 28-40 |
81/2 | 435 | 55 | 5R | 59 | 5 | 41/2REG | 20-100 | 90-240 | 32-44 |
91/2 | 460 | 65 | 5R | 73 | 5 | 65/8REG | 22-115 | 90-210 | 38-50 |
121/4 | 530 | 75 | 7R | 140 | 5 | 65/8REG | 25-145 | 70-180 | 46-80 |
Bits Type/IADC code:F5566D / M522
Short parabola Crown Profile,Ø19 cutters,Power of counterpoise design;
Adopt aid cutters design;
reparable nozzles or immobility nozzles,gage of smooth design;
Such as suitable for Formation Grade of five classes hard;
Such as Shale,Limestone,Sand,Anhydrite。
DESING PARAMETERS | OPERATING PARAMETERS | ||||||||
Size (in) |
Total length(mm) |
Gage Length(mm) |
Nozzle | Net weight(kg) | Number of blades |
API Shank(in) |
WOB(kn) | RPM | Flow rate(l/s) |
8 | 435 | 55 | 5R | 53 | 5 | 41/2REG | 15-90 | 90-240 | 28-40 |
81/2 | 435 | 55 | 5R | 59 | 5 | 41/2REG | 20-100 | 90-240 | 32-44 |
91/2 | 460 | 65 | 5R | 73 | 5 | 65/8REG | 22-115 | 90-210 | 38-50 |
121/4 | 530 | 75 | 7R | 140 | 5 | 65/8REG | 25-145 | 70-180 | 46-80 |
Bits Type/IADC code:F5556 HY/ M522
Short parabola Crown Profile,Ø16 and Ø19 cutters,Power of counterpoise design;
Mixed cutter & decompression cutters design;
reparable nozzles,gage of smooth design;
Such as suitable for Formation Grade of five classes;
Such as Shale,Limestone,Sand, Anhydrite。
DESING PARAMETERS | OPERATING PARAMETERS | ||||||||
Size (in) |
Total length(mm) |
Gage Length(mm) |
Nozzle | Net weight(kg) | Number of blades |
API Shank(in) |
WOB(kn) | RPM | Flow rate(l/s) |
8 | 435 | 55 | 5R | 53 | 5 | 41/2REG | 15-90 | 90-240 | 28-40 |
81/2 | 435 | 55 | 5R | 59 | 5 | 41/2REG | 20-100 | 90-240 | 32-44 |
91/2 | 490 | 65 | 5R | 73 | 5 | 65/8REG | 22-115 | 90-210 | 38-50 |
121/4 | 530 | 75 | 7R | 106 | 5 | 65/8REG | 25-145 | 70-180 | 46-80 |
Bits Type/IADC code:F6556/ M522
Short parabola Crown Profile,Ø16 cutters,Power of counterpoise design;
reparable nozzles & tine nozzles,gage of smooth design;
Such as suitable for Formation Grade of five classes;
Such as Shale,Limestone,Sand, Anhydrite。
DESING PARAMETERS | OPERATING PARAMETERS | ||||||||
Size (in) |
Total length(mm) |
Gage Length(mm) |
Nozzle | Net weight(kg) | Number of blades |
API Shank(in) |
WOB(kn) | RPM | Flow rate(l/s) |
8 | 435 | 55 | 3R+3F | 53 | 6 | 41/2REG | 15-90 | 90-240 | 28-40 |
81/2 | 435 | 55 | 3R+3F | 59 | 6 | 41/2REG | 20-100 | 90-240 | 32-44 |
91/2 | 490 | 65 | 7R | 73 | 6 | 65/8REG | 22-115 | 90-210 | 38-50 |
121/4 | 530 | 75 | 9R | 106 | 6 | 65/8REG | 25-145 | 70-180 | 46-80 |
Bits Type/IADC code:F6556DR/ M522
Short parabola Crown Profile,Ø16 cutters,Power of counterpoise design;
Adopt aid cutters design;
reparable nozzles & tine nozzles,gage of smooth design;
Such as suitable for Formation Grade of five classes;
Such as Shale,Limestone,Sand, Anhydrite。
DESING PARAMETERS | OPERATING PARAMETERS | ||||||||
Size (in) |
Total length(mm) |
Gage Length(mm) |
Nozzle | Net weight(kg) | Number of blades |
API Shank(in) |
WOB(kn) | RPM | Flow rate(l/s) |
8 | 435 | 55 | 3R+3F | 53 | 6 | 41/2REG | 15-90 | 90-240 | 28-40 |
81/2 | 435 | 55 | 3R+3F | 59 | 6 | 41/2REG | 20-100 | 90-240 | 32-44 |
91/2 | 490 | 65 | 7R | 73 | 6 | 65/8REG | 22-115 | 90-210 | 38-50 |
121/4 | 530 | 75 | 9R | 106 | 6 | 65/8REG | 25-145 | 70-180 | 46-80 |
Bits Type/IADC code:F6556T/ M522
Short parabola Crown Profile,Ø16 round cutters & tine cutters,Power of counterpoise design;
Round cutters & tine cutters mixed design;
reparable nozzles & immobility nozzles,gage of smooth design;
Such as suitable for Formation Grade of five classes;
Such as Shale,Limestone,Sand, Anhydrite。
DESING PARAMETERS | OPERATING PARAMETERS | ||||||||
Size (in) |
Total length(mm) |
Gage Length(mm) |
Nozzle | Net weight(kg) | Number of blades |
API Shank(in) |
WOB(kn) | RPM | Flow rate(l/s) |
8 | 435 | 55 | 3R+3F | 53 | 6 | 41/2REG | 15-90 | 90-240 | 28-40 |
81/2 | 435 | 55 | 3R+3F | 59 | 6 | 41/2REG | 20-100 | 90-240 | 32-44 |
91/2 | 490 | 65 | 7R | 73 | 6 | 65/8REG | 22-115 | 90-210 | 38-50 |
121/4 | 530 | 75 | 9R | 106 | 6 | 65/8REG | 25-145 | 70-180 | 46-80 |
Bits Type/IADC code:G4456 HY/ M422
Short parabola Crown Profile,Ø16 & Ø19 cutters,Power of counterpoise design;
Mixed cutter and decompression cutters design;
helix blade,helix cutters;
reparable nozzles or immobility nozzles,gage of smooth design;
Such as suitable for Formation Grade of four classes;
Such as clay,marl,sand,shale and salt。
DESING PARAMETERS | OPERATING PARAMETERS | ||||||||
Size (in) |
Total length(mm) |
Gage Length(mm) |
Nozzle | Net weight(kg) | Number of blades |
API Shank(in) |
WOB(kn) | RPM | Flow rate(l/s) |
8 | 425 | 55 | 4R | 50 | 4 | 41/2REG | 15-85 | 90-360 | 28-40 |
81/2 | 425 | 55 | 4R | 56 | 4 | 41/2REG | 20-90 | 90-360 | 32-44 |
9 | 480 | 65 | 4R | 64 | 4 | 41/2REG | 20-105 | 90-360 | 34-46 |
91/2 | 460 | 65 | 4R+1F | 70 | 4 | 65/8REG | 22-110 | 90-280 | 38-50 |
Bits Type/IADC code:G4455D / M422
Short parabola Crown Profile,Ø16 cutters,Power of counterpoise design;
Adopt aid cutters design;
helix blade,helix cutters;
reparable nozzles,gage of smooth design;
Such as suitable for Formation Grade of four classes;
Such as clay,marl,sand,shale and salt。
DESING PARAMETERS | OPERATING PARAMETERS | ||||||||
Size (in) |
Total length(mm) |
Gage Length(mm) |
Nozzle | Net weight(kg) | Number of blades |
API Shank(in) |
WOB(kn) | RPM | Flow rate(l/s) |
8 | 425 | 55 | 4R | 52 | 4 | 41/2REG | 15-85 | 90-360 | 28-40 |
81/2 | 425 | 55 | 4R | 56 | 4 | 41/2REG | 20-90 | 90-360 | 32-44 |
9 | 460 | 65 | 4R | 66 | 4 | 41/2REG | 20-105 | 90-360 | 34-46 |
91/2 | 460 | 65 | 5R | 72 | 4 | 65/8REG | 22-110 | 90-280 | 38-50 |
Bits Type/IADC code:G5556 / M522
Short parabola Crown Profile,Ø16 cutters,Power of counterpoise design;
decompression cutters design;
helix blade,helix cutters;
reparable nozzles,gage of smooth design;
Such as suitable for Formation Grade of five classes;
Such as Shale,Limestone,Sand, Anhydrite。
DESING PARAMETERS | OPERATING PARAMETERS | ||||||||
Size (in) |
Total length(mm) |
Gage Length(mm) |
Nozzle | Net weight(kg) | Number of blades |
API Shank(in) |
WOB(kn) | RPM | Flow rate(l/s) |
8 | 435 | 55 | 5R | 53 | 5 | 41/2REG | 15-90 | 90-240 | 28-40 |
81/2 | 435 | 55 | 5R | 59 | 5 | 41/2REG | 20-100 | 90-240 | 32-44 |
91/2 | 490 | 65 | 5R | 73 | 5 | 65/8REG | 22-115 | 90-210 | 38-50 |
121/4 | 530 | 75 | 7R | 106 | 5 | 65/8REG | 25-145 | 70-180 | 46-80 |
Bits Type/IADC code:G5566 / M522
Short parabola Crown Profile,Ø19 cutters,Power of counterpoise design;
helix blade,helix cutters;
reparable nozzles ,gage of smooth design;
Such as suitable for Formation Grade of five classes;
Such as Shale,Limestone,Sand,Anhydrite。
DESING PARAMETERS | OPERATING PARAMETERS | ||||||||
Size (in) |
Total length(mm) |
Gage Length(mm) |
Nozzle | Net weight(kg) | Number of blades |
API Shank(in) |
WOB(kn) | RPM | Flow rate(l/s) |
8 | 435 | 55 | 5R | 53 | 5 | 41/2REG | 15-90 | 90-240 | 28-40 |
81/2 | 435 | 55 | 5R | 59 | 5 | 41/2REG | 20-100 | 90-240 | 32-44 |
91/2 | 490 | 65 | 5R | 73 | 5 | 65/8REG | 22-115 | 90-210 | 38-50 |
121/4 | 530 | 75 | 7R | 106 | 5 | 65/8REG | 25-145 | 70-180 | 46-80 |
Bits Type/IADC code:G5568S / M521
Rond Crown profile,Ø19 cutters,Power of counterpoise design;
helix blade,helix cutters;
reparable nozzles,gage of smooth design;
Such as suitable for Formation Grade of five classes;
Such as Shale,Limestone,Sand,Anhydrite。
DESING PARAMETERS | OPERATING PARAMETERS | ||||||||
Size (in) |
Total length(mm) |
Gage Length(mm) |
Nozzle | Net weight(kg) | Number of blades |
API Shank(in) |
WOB(kn) | RPM | Flow rate(l/s) |
8 | 405 | 55 | 5R | 47 | 5 | 41/2REG | 15-85 | 90-360 | 28-40 |
81/2 | 405 | 55 | 5R | 53 | 5 | 41/2REG | 20-90 | 90-360 | 32-44 |
91/2 | 460 | 65 | 5R | 67 | 5 | 65/8REG | 22-110 | 90-280 | 38-50 |
121/4 | 500 | 75 | 7R | 91 | 5 | 65/8REG | 25-125 | 70-240 | 46-80 |
Bits Type/IADC code:G4468SR / M421
Rond Crown profile,Ø19 cutters,Power of counterpoise design;
helix blade,helix cutters;
reparable nozzles,gage of smooth design;
Such as suitable for Formation Grade of four classes;
Such as Shale,Limestone,Sand,Anhydrite。
DESING PARAMETERS | OPERATING PARAMETERS | ||||||||
Size (in) |
Total length(mm) |
Gage Length(mm) |
Nozzle | Net weight(kg) | Number of blades |
API Shank(in) |
WOB(kn) | RPM | Flow rate(l/s) |
8 | 395 | 40 | 4R | 47 | 4 | 41/2REG | 15-85 | 90-360 | 28-40 |
81/2 | 395 | 40 | 4R | 53 | 4 | 41/2REG | 20-90 | 90-360 | 32-44 |
91/2 | 440 | 40 | 4R | 67 | 4 | 65/8REG | 22-110 | 90-280 | 38-50 |
105/8 | 480 | 40 | 6R | 91 | 4 | 65/8REG | 25-125 | 70-240 | 46-80 |
Bits Type/IADC code:G5568SR / M521
Rond Crown profile,Ø19 cutters,Power of counterpoise design;
helix blade,helix cutters;
reparable nozzles,gage of smooth design;
Such as suitable for Formation Grade of five classes;
Such as Shale,Limestone,Sand,Anhydrite。
DESING PARAMETERS | OPERATING PARAMETERS | ||||||||
Size (in) |
Total length(mm) |
Gage Length(mm) |
Nozzle | Net weight(kg) | Number of blades |
API Shank(in) |
WOB(kn) | RPM | Flow rate(l/s) |
8 | 395 | 40 | 5R | 47 | 5 | 41/2REG | 15-85 | 90-360 | 28-40 |
81/2 | 395 | 40 | 5R | 53 | 5 | 41/2REG | 20-90 | 90-360 | 32-44 |
91/2 | 440 | 40 | 5R | 67 | 5 | 65/8REG | 22-110 | 90-280 | 38-50 |
105/8 | 480 | 40 | 7R | 91 | 5 | 65/8REG | 25-125 | 70-240 | 46-80 |
Bits Type/IADC code:PC2449 / M431
Cone crown profile of short,Ø13 cutters,Power of counterpoise design;
fastness nozzles,gage of slot design;
Such as suitable for Formation Grade of four classes;
Such as clay,marl,sand,shale and salt。
DESING PARAMETERS | OPERATING PARAMETERS | ||||||||
Size (in) |
Total length(mm) |
Gage Length(mm) |
Nozzle | Net weight(kg) | Number of blades |
API Shank(in) |
WOB(kn) | RPM | Flow rate(l/s) |
77/8×4 | 403 | 38 | 6F | 26 | 12 | 250P/川8-4 | 15-45 | 60-130 | 12-24 |
81/4×41/8 | 403 | 38 | 6F | 29 | 12 | 250P/川8-4 | 15-45 | 60-130 | 12-24 |
81/2×4 | 403 | 38 | 6F | 29 | 12 | 250P/川8-4 | 15-45 | 60-130 | 12-24 |
81/2×41/8 | 403 | 38 | 6F | 29 | 12 | 250P/川8-4 | 15-45 | 60-130 | 12-24 |
Bits Type/IADC code:IC8838 / M841
Rotundity crown profile,gage of slot design;
Such as suitable for Formation Grade of six and upwards classes;
Such as Ultra hard and abrasive formations;
Such as Silstone,Sandstone,Quartzite,Volcanic。
DESING PARAMETERS | OPERATING PARAMETERS | ||||||||
Size (in) |
Total length(mm) |
Gage Length(mm) |
Nozzle | Net weight(kg) | Number of blades |
API Shank(in) |
WOB(kn) | RPM | Flow rate(l/s) |
77/8×4 | 380 | 38 | 0 | 24 | 18 | 250P | 15-55 | 50-130 | 12-24 |
81/2×4 | 380 | 38 | 0 | 27 | 18 | 250P | 15-60 | 50-130 | 12-24 |
81/2×41/8 | 380 | 38 | 0 | 27 | 18 | 250P | 15-60 | 50-130 | 12-24 |
T.F.A values of Nozzles Sizes (mm2)
NozzleSize 1/32″(mm) |
Number of Nozzles | |||||||||
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | |
6#(4.76) | 17.8 | 35.61 | 53.41 | 71.26 | 89.02 | 106.83 | 124.63 | 142.44 | 160.24 | 178.05 |
7#(5.56) | 24.25 | 48.49 | 72.74 | 96.99 | 121.23 | 145.48 | 169.73 | 193.97 | 218.22 | 242.46 |
8#(6.35) | 31.67 | 63.34 | 95.01 | 126.68 | 158.35 | 190.02 | 221.68 | 253.35 | 285.02 | 316.69 |
9#(7.14) | 40.08 | 80.16 | 120.24 | 160.32 | 200.40 | 240.48 | 280.56 | 320.64 | 360.72 | 400.80 |
10#(7.94) | 49.48 | 98.96 | 148.44 | 197.92 | 247.40 | 296.88 | 346.36 | 395.84 | 445.32 | 494.80 |
11#(8.73) | 59.87 | 119.74 | 179.61 | 239.48 | 299.35 | 359.22 | 419.09 | 478.96 | 538.83 | 598.70 |
12#(9.53) | 71.26 | 142.52 | 213.78 | 285.04 | 356.30 | 427.56 | 498.82 | 570.08 | 641.34 | 712.60 |
13#(10.32) | 83.63 | 167.26 | 250.89 | 334.52 | 418.15 | 501.78 | 585.41 | 669.04 | 752.67 | 836.30 |
14#(11.11) | 96.99 | 193.98 | 290.97 | 387.96 | 484.95 | 581.94 | 678.93 | 775.92 | 872.91 | 969.90 |
15#(11.91) | 111.34 | 222.68 | 334.02 | 445.36 | 556.70 | 668.04 | 779.38 | 890.72 | 1000.1 | 1113.4 |
16#(12.70) | 126.68 | 253.36 | 380.04 | 506.72 | 633.40 | 760.08 | 886.76 | 1013.4 | 1140.1 | 1266.8 |
17#(13.49) | 143.01 | 286.02 | 429.03 | 572.04 | 715.05 | 858.06 | 1001.1 | 1144.1 | 1287.1 | 1430.1 |
18#(14.29) | 160.33 | 320.66 | 480.99 | 641.32 | 801.65 | 961.98 | 1122.3 | 1282.6 | 1443.0 | 1603.3 |
19#(15.08) | 178.63 | 357.26 | 535.89 | 714.52 | 893.15 | 1071.8 | 1250.4 | 1429.0 | 1607.7 | 1786.3 |
20#(15.88) | 197.93 | 395.86 | 593.79 | 791.72 | 989.65 | 1187.6 | 1385.5 | 1583.4 | 1781.4 | 1979.3 |
21#(16.69) | 218.22 | 436.44 | 654.66 | 872.88 | 1091.1 | 1309.3 | 1527.5 | 1745.8 | 1964.0 | 2182.2. |
22#(17.46) | 239.5 | 479.00 | 718.50 | 958.00 | 1197.5 | 1437.0 | 1676.5 | 1916.0 | 2155.5 | 2395.0 |
3 7/8in 3 7/8″KW413TV(99mm),
Products
+Drilling Equipment
- KINGWELL Stabilizer-sleeve type
- Deflecting tools and mill tools
- drill bits
- Cross Coupling Cable Protector
- Cross Coupling Cable Protector
- KINGWELL Underreamer
- Reammate Underreamer
- Wellbore Cleaning up tools
- mill shose
- Emergency Drill Pipe Hang Off Tool BE NO.
- KINGWELL Raiseboring drill pipes
- Stabilizer
- future drill tools
- RazRdillo Casing Scraper
- balck rhino Non rotating Casing Scrappe
- RGS Remote Gauge Stabilizer
- Shock Tools
- Casing and Pipe cutting equipment
- HORNET Series Drilling Tools
- Hydraulic Oscillator
- Hydraulic Thruster
- Casing Scraper
- Non-rotating wellbore casing scraper
- Drill Bit
- multiple activation autolock bypass tools
- Jar Intensifier Type YJQ
- Overshot
- Full opening safety valve
- Downhole Motor
- Drill Pipe
- Top Drive Drilling Tools
- Hole Opener
- Drill Hydroscillator
- Lubricated Fishing Bumper Sub Type BXJ
- Drilling Jar
- Continuous Circulating Valve
- Inside Blowout Control Tools
- Multi-cycle Circulating tools
- Hydraulic Jar Type YSJ
- Drilling Accelerator Type ZJQ
- Fishing Bumper Sub Type KXJ
- Model DJQ Cable Jar
- Model ZTX Highly-Efficient Vibration Resi
- Super Fishing Jar Type CSJ
- Surface Bumper Jar Type DJ
- Surface Bumper Jar Type DX
- Two-action Drill Accelerator Type SZJQ
- Fishing Spear
- Junk Basket
- Wear Preventive Subs
- Kelly
- Heavy Weight Drill Pipe
- Drill Collar
- Magnetic Fishing Tool
- Die Collar
- Casing Scraper
- Shock Absorber
- Pup Joint
- Subs
+Mud Pump Parts
- KW Boiler Feed Pump
- KW Spring-opened External Thread Relief V
- KW Series Vane Rotor Pumps
- KW Series Regulating Injection Pump
- KW Series Oil And Gas Mixture Pump
- KW Shaker
- KW Series Of High-pressure Feed Pump
- KW Series Homogeneous Pump
- KW Series Variable Adjusting Injection Pu
- KW Series Fracturing Pump
- KW Series Piston Pump Skid Room
- KW Series Mud Pump
- KW Type Metering Pumps
- KW Series Diaphragm Metering Pumps
- KW Pressure Injection Pump Series
- KW Series of Energy-efficient Pressure In
- KW Series High-pressure Pump
- KW Energy Reciprocating Pumps
- KW System Energy Efficient Double
- KW Based Energy Efficient Vertical
- KW CO2 Injection Pump
- KW Mud Pump
- KW Boiler Pump
- KW Series Double Screw Pump
- KW Injection Pumps
- Mud Pump Liners
- Mud Pump Pistons
- F1600 mud pump unit
- Mud Pump Valve and Seat
- Crankshaft
- parts for 12-P-160
- Fluid Ends Modules
- Cylinder Head and Valve Cover
- Pulsation Dampener
- Piston Rod and Extension Rod
+Rig Accessories
- KWDWS Water Cooling Eddy Current Brakes
- BOP
- Christmas Tree
- An Overview of OCTG Piping Inspection Met
- Casing and tubing
- Wire-wrapped Screen
- ASTM A53 GRADE B SEAMLESS
- flange
- EN 10217 Welded steel pipe
- Oil Country Tubular Goods (OCTG)
- ASTM A333 Grade1 Carbon Steel Pipe
- Coiled Tubing
- High Pressure Fluid Control Products
- Coupling
- API 5CT Hot Rolled Tubing Pup Joint
- Ram Type and Annular Type Blowout Prevent
- Solids Control System
- Crown Block
- F-1600HL Mud Pump
- Coiled Tubing BOP
- drilling line
- Kill Manifold and Choke Manifold
- F-2200HL Mud Pump
- Ironroughneck
- Hydraulic Disc Brake System
- Mud Hopper and Mud mixing pump
- Gate Valve
- Top Drive
- OCTG
- Butterfly Valve
- Globe Valve
- Ball Valve
- Plug Valve
- Choke Valve
- Check Valve
- Casing Hanger and Tubing Hanger
- Tubing Spool and Casing Spool
- Slip
- Tong
- Elevator
- Tubing Head
- Casing Head
- Drawworks
- High and Low Pressure Pipe Manifold
- Forgings for Flange/Valve/Shaft/Gear
- Forging for Downhole Tools
- Pipe Mould
- Die Steel/Tool Steel
- Mandrel Bar
- Rolling Mill Roll
- Corrugated roll
- Travelling Block and Hook
- Rig Swivel
- Drilling Rig Mast
- Rotary Table
- Mud Pump
- Vacuum Degasser
- Other Solid Control Equipment
- Shaker Screen
- Submersible Slurry Pump
- Shear Pump
- Mud Agitator
- Centrifugal Pump
- Decanter Centrifuge
- Desilter
- Desander
- Mud Cleaner
- Linear Motion Shale Shaker
+APR Drill Stem Testing Tools
- Champ v Packer
- RTTS Packer
- Subsurface Control Valve (SSC) Storm Vavl
- Fullbore DST string
- DST TOOLS specification
- LPR-N Valve
- Retrievable Service Packers
- Full-bore Compensating Pipe
- APR Pressure-controlled Formation Tester
- Storm Valve
- Surface Well Testing system
- Hydro Trip Pressure Sub
- Super Safety Valve/Subsea Safety Valves (
- Drain Valve
- OMNI Valve
- Circulating Valve
- Safety Joint
- Safety Valve
- Rupture Disk (RD) Sampler
- Slip Joint
- Hydraulic Jar
- Shock Absorber
- Gauge Carrier
- Tester Valve
+Coiled Tubing Completion
- Coiled Tubing Stuffing Boxes (Strippers)
- CT Rotating Wash Tool
- Slimline Grapple Connector
- Flow Release Internal Pulling Tools
- Coiled Tubing Technology
- Flapper Check Valve
- Bow Spring Centralizer
- Dimple-Grapple Drilling Connector
- Slip-Grub Screw Connector
- Ball Check Valve
- Dual Circulation Sub
- Flow Release External Pulling Tools
- Hydraulic Bow Spring Centralizer
- Snake Pin
- Coiled Tubing Blowout Preventers
+Completion Tools
- ESP Packer
- 9-5/8” single trip multi-zones sand con
- 8” ball type Formation Isolation Valve
- Drilling and completion equipment leasing
- wireline Tool string
- Completion Tools
- KWFPP-1 Dual Element Open Hole Anchor/ Is
- Bridge Plug
- Gas Lift Systems
- Coiled Tubing tools
- Slickline Tools
- Coiled Tubing Multi Stage Frac System
- Chemical Injection System
- The Swellable Packer
- KWBFS Ball-Activated Frac Sleeve
- KW Frac System
- Drag Block Tubing Anchor
- KWHSRP4 Hydraulic-Set Retrievable Packer
- Float Shoe
- Ball Seat Circulation Valve
- Hydraulic Tubing Anchor
- Open Hole Centralizer
- Open Hole Reamer
- Ball and Seat
- KWBFS-1 Advanced Ball-Activated Frac Slee
- KWHFS Hydro-Activated Frac Sleeve
- Wireline-Retrievable Safety Valves
- Flow Coupling
- Gauge Soft Hanger
- Back-Pressure Valve System
- Landing Nipple and Lock Mandrel
- Gas Lift Products
- On-off Tool
- Travel Joints
- Seal Bore Extension & Mill Out Extenx
- Catcher Subs
- Control Line and Cable Protectors
- Y-Tool
- Cable Pack-Off
- Gas Vent Valve
- Sur-Latch Shear Release Seal Unit Assembl
- KWMSRP Mechanical -Set Retrievable Packer
- KWHSRP3 Hydraulic-Set Retrievable Packer
- KWHSRP2 Hydraulic-Set Retrievable Packer
- KWHSRP1 Hydraulic-Set Retrievable Packer
- KWRSBP Packer Retrieving Tool
- KWHS-1 Hydraulic Setting Tool
- KWRSBP Retrievable Seal Bore Packers
- KWHSPP Hydraulic Set Permanent Packer
- KWLS Latch Seal Assembly
- Safety Valve Landing Nipples
- KWPRS Upper Seal Bore Retrievable Packer
- Tubing -Retrievable Safety Valves
- Side Door Sleeve SDS
- Tie Back Packer
- KWLS Liner setting tools
- Anchor Seal Assembly
- KWHST Hydraulic Setting Tool
- Locator Seal Assembly
- KWPSBP Permanent Seal Bore Packers
+Mill
+Cased Hole Logging Equipment
- Continuous Gyro Tool
- Free Point Indicating Tool (FPIT)
- DownholeTractor
- Shock Absorption Cartridge
- Selective Release Tool
- Rugged CCL/Tension Tool
- Perforating Control System
- Cable Head
- Segmented Bond Tool
- Radial Bond Tool
- CBL Tool
- Cement Bond Logging
- Ultrasonic Imaging Tool
- Electromagnetic Thickness Scanner (EMT16)
- H2S Resistant Electromagnetic Tool (EMT07
- Electromagnetic Thickness Tool (EMT08)
- Electromagnetic Thickness Tool (EMT06)
- Electromagnetic Thickness Tool (EMT04)
- Electromagnetic Thickness Tool (EMT05)
- Electromagnetic Thickness Tool
- Constant Magnetic Thickness Tool
- H2S Resistant 24-Finger Caliper Tool
- Multi-finger Imaging Tool(24-Finger &
- Multi-Finger Imaging Tool (4-finger)
- Array Holdup Tool
- High Temperature PLT
- Noise Spectrum Tool
- Gas Holdup Tool (GHT01)
- Radioactive Fluid Density Tool
- Tuning Fork Density
- Temperature Tool
- Dual Caliper Tool (DCT04)
- Continuous Jeweled Bearing Flowmeter
- Online Spinner Flowmeter
- Continuous Ball Bearing Flowmeter
- Caged Fullbore Spinner Flowmeter
- Temperature/Water-Holdup/Flowmeter
- Quartz Pressure/CCL Tool
- Gamma Ray Tool
- Casing Collar Locator(CCL10)
- Production Logging Tools
- Wireline Telemetry Cartridge
- Memory Logging Software
- Real Time Clock (RTC01/RTC02)
- Downhole Memory Cartridge (DMCO3/DMCO2)
- Downhole Battery Cartridge (DBC01/DBC02)
- Time Depth Recorder (TDR01)
- KW-Memory Control Module (MCM01)
- Memory System
- KW Data Acquisition System
- KW Micro DAS