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R32 Threaded Button Bit is the most important size for drifting and tunneling drilling job,
Diameter 43mm, 45mm.48mm,51mm, 57mm, 64mm
Skirt body : retrac, and normal,
Face : flat, uniface,
Carbide : Dome, ballistic
Used in drifting and tunneling,, or dimensional natural stone quarrying
To match shank rod, and MM and MF Hex drifter rod for light-duty top hammer.