Sinodrills Button Bit Taper Button Bit: Button bit diameter: 28mm, 30mm, 32mm, 34mm...

Sinodrills Cross Bit Taper Cross Bit Cross bit diameter: 30mm, 32mm, 35mm, 38mm, 41...

1.Standard:ASTM, DIN, GB, BS, JIS, ASME, API, AISI,, ANSI 2.Packing:Bundles, Wooden ...

Sinodrills Step Drag Bit Step drag bit: three wings step drag bit, four wings step d...

Sinodrills Chevron Drag Bit Chevron drag bit: three wings chevron drag bit, four win...

Sinodrills DTH Bit DHD350-152, COP42-127, QL60-203 DTH bit diameter: 76mm to 311mm. ...

1.Standard:ASTM, DIN, GB, BS, JIS, ASME, API, AISI,, ANSI 2.Packing:Bundles, Wooden ...

1.Standard:ASTM, DIN, GB, BS, JIS, ASME, API, AISI,, ANSI 2.Packing:Bundles, Wooden ...

1.Standard:ASTM, DIN, GB, BS, JIS, ASME, API, AISI,, ANSI 2.Packing:Bundles, Wooden ...

1.Standard:ASTM, DIN, GB, BS, JIS, ASME, API, AISI,, ANSI 2.Packing:Bundles, Wooden ...

1.Standard:ASTM, DIN, GB, BS, JIS, ASME, API, AISI,, ANSI 2.Packing:Bundles, Wooden ...

1.Standard:ASTM, DIN, GB, BS, JIS, ASME, API, AISI,, ANSI 2.Packing:Bundles, Wooden ...