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 design: flat, uniface, Drop Center
Carbide design: Dome, ballistic, semi-ballistic
Used in bench drilling, underground long hole drilling to match extension MF rod, MM rod heavy duty top hammer.
13 dome carbide inserts T45 threaded drill bit with flat face design, 89mm diameter match with extension drill rod for bench drilling and underground long hole drilling.
For more details please watch PDF online: T45 Drill Bits for Bench Drilling, Long Hole Drilling Underground Catalogue