T45-89 Threaded Button Bits | Top Hammer Bit | Rock
Rock drilling tools factory ProDrill manufactures rock drill bits: T45 Threaded Button Bit i s the most important size for benching and long-hole drilling underground. Diameter: 76mm, 89mm, 102mm . Skirt body: retrac, and normal, straightrac . Face design: flat, uniface, Drop Center. Carbide design: Dome, ballistic, semi-ballistic
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