Q15-102-T51 Threaded Button Bit

T51 Threaded Button Bits are the most important size for benching and long-hole drilling underground, manufactured by Rock Drilling Tools factory ProDrill.

Diameter: 76mm, 89mm,102mm
Skirt body design: retrac, and normal, straightrac
Face type: flat, uniface, Drop Centre
Carbide shape:  Dome, ballistic, semi-ballistic/parabolic

This type of rock drill bits used in bench drilling, underground long hole drilling to match extension Male Female rod, Male Male rod heavy duty top hammer.
Semi-ballistic Button Threaded Drill BitThreaded button bitT51 Threaded Button Bit
15 dome carbide inserts T51 threaded drill bit with flat face design, 102mm diameter match with T51 extension drill rod for bench drilling and lone hole drilling underground.

Sandvik Top hammer drill rig RANGER DX700 using ProDrill drill bits , showing perfect drilling performance of higher penetration rate , longer life, lower cost.

For more details please watch PDF online:  T51 Drill Bits for Bench Drilling, Long Hole Drilling Underground Catalogue