Button Bit Retrac Q14-89-T45

Rock drilling tools factory Bloom 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.