ProDrill Threaded Button Bit Advantage:All around good performance,Increased hole straightness,Optimum fushing characteristics,Idealin medium-soft to hard abrasive formations causing flat face bits to become convexed as wear accumulates.
Rock drilling tools factory ProDrill manufactures rock drill bits: T45 Threaded Button Bit is the most important size for benching and long-hole drilling underground
Diameter: 76mm, 89mm, 102mm
Skirt body: retrac, and normal, straightrac
Face type: flat, uniface, drop Center
Carbide shape: Dome, ballistic, semi-ballistic
Used in bench drilling, underground long hole drilling to match extension MF rod, MM rod heavy duty top hammer.
13 Semi-ballistic carbide inserts T45 threaded button bits with drop center face, 89mm diameter and retrac skirt body match with extension drill steels for bench drilling and underground long hole drilling.