Top hammer drill mining rock ball bit for blasting in quarry
DTH Hammer
Thread button drill bits size from 33mm-115mm,including thread types R22,R25,R28,R32,R35,R38,T38,T45,T51,GT60,ST58,ST68,ETC.
The drill bit types including ： flat button bit,reaming button bit,retact button bit , drop center retract button bit.
The carbide shape of the drill bit including : spherical,ballistic and conical for customers to choose.
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Description |
With carbide buttons hot pressed on the bit skirts,
tapered button bits have a good drilling performance and are excellent in longevity. |
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Diameter |
26mm to 60mm |
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Taper Degree |
4.46° 6° 7° 11° 12° |
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Carbide Type |
Chisel type, Cross type, Button type |
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Shank Size |
Hex. 19mm, Hex, 22mm and Hex. 25mm |
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Button type |
Hemispherical, Parabolic, Ballistic, Conical |
