Rock drilling tools factory ProDrill manufactures high quality rock drill bits, one of the most important size for benching and long-hole drilling underground is T51 Threaded Rocket Button Bit.
Diameter: 76mm, 89mm, 102mm
Skirt body: normal
Carbide shape: Conical carbide
Used in bench drilling, underground long hole drilling to match extension MF rod, MM rod heavy duty top hammer drilling tools.
Q12-T51-89button rocket bit
12 Conical carbide inserts T51 threaded drill bit with rocket design, 89 mm diameter match with extension drill steels. rocket are well suited for drilling straighter holes in less abrasive and less consolidated rock at a faster rate.