Description
Rock drilling tools manufacturerSuperdrill offers rock drill bits: T51 Threaded button bits are 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
For Bench drilling, underground long hole drilling
To match extension MF rod, MM rod heavy duty top hammer.
Q14-T51-102 Drop Center Threaded Button Bit
14 Semi-ballistic/parabolic carbide inserts T51 threaded drill bit with drop center face, 102mm diameter match with Extension Drill Rod for bench drilling and long hole drilling underground.
T51-115-15 Button Drop Center Retrac Button Bit, Carbide Layout 14mm*8+13mm*7