auger drill bits

1) ISO9001&API
2)Covers all IADC codes
3)Size:12 1/4"
4)Used for oil well and water well

9 7/8" 537 type tricone bits

HSS twist drill bits fully ground DIN338
Split points: 118 / 135 degrees
Sizes: 1-20mm
HRC 62-66
Black oxide nitrided ...

HSS twist drill bits fully ground DIN338
Split points: 118 / 135 degrees
Sizes: 1-20mm
HRC 62-66
Black oxide nitrided ...

TONGYU supply DIN338, DIN340, DIN1897, DIN1869, DIN341, DIN345, Jobber, Screw & Taper Length, aircraft drills, etc.

This TCI tricone bit used for water well drilling. For soft to medium hard rocks.Application: soft shale, medium soft limestone, medium soft sandston

R28 tungsten carbide drill button bit
1.Thread of drill button bit:R22,R25,R28,R32,R38
2.Face of drill button bit:Flat, drop center
3.Strict test

1.Excellent reaming ability,hole size uniformity
2.Safety,durability and high cost performance
3.High cost-performance

1.Excellent reaming ability,hole size uniformity
2.Safety,durability and high cost performance
3.High cost-performance

1.Excellent drilling speed,drilling life
2.Low drilling resistance
3.Excellent power for ultra hard rock and controling the change of diameter size

1.Excellent drilling speed,drilling life
2.Low drilling resistance
3.Excellent power for ultra hard rock and controling the change of diameter size

1.Excellent drilling speed,drilling life
2.Low drilling resistance
3.Excellent power for ultra hard rock and controling the change of diameter size

1.Excellent drilling speed,drilling life
2.Low drilling resistance
3.Excellent power for ultra hard rock and controling the change of diameter size

1.Excellent drilling speed,drilling life
2.Low drilling resistance
3.Excellent power for ultra hard rock and controling the change of diameter size

1.Excellent drilling speed,drilling life
2.Low drilling resistance
3.Excellent power for ultra hard rock and controling the change of diameter size

7pcs Nail Drill Bits for Acrylic Nails - 3/32 Electric Nail Drill Bit Set - Professional Nails Supply Carbide Nail Drill Bit for Gel Nails Cuticles.

Tricone bits from 6 to 17 1/2 inch, both steel milled tooth and Tungsten Carbide Insert Bit with metal seal.

1Certified by ISO9001&API
2Used for water well, oil field
3IADC:114-117,127,437,517,617,637
4.type:3-25inchs
5.delivery on time

1.size:10-1/2 inch(266.7mm)
2.Thread sizes:6-5/8inch(168.3mm)
3.Formation:Hard with high abrasiveness,such as hard limestone,dolomite

Glass tile drill bits

Place of Origin: Hebei, China (Mainland)
Brand Name: Great
Model Number: GSD1635TX
Type: Drill Bit
Machine Type: Drilling Equipment

Threaded button rock drill bit
1.Model:R22,R25,R32,R38,T38,T45,T51;
2.Tip Types:Round, Parabolic, Ballistic;
3.Application:Mining, Drilling, etc

Made with high quality of raw material through special heat treatment, especially, tungsten carbide of tapered button bits are from Boart long year

12-1/4"IADC517 TCI tricone bits
1.High-precision metal seal
2.Higher stability
3.Reasonable price and long uselife

Specification: 3mm, 4mm, 5 mm....25mm, 26mm, etc.

Premium Arix type Diamond core drill bit for granite
- Longer Life-Span
- Environment Friendly
- 30%+ sharper

Self drilling rock bolts with sizes R25, R28, R32N, R32S, R38, R51N, R51L, T76N, T76S

Impregnated diamond core bit, surface set diamond core bit, tungsten carbide core bit

Masonry Drill Bits

Our products successively has obtained ISO9001:2000 international quality system certificate and API certificate.