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
Sandvik Top hammer drill rig RANGER DX700 using ProDrill drill bits , showing perfect drilling performance of higher penetration rate , longer life, lower cost.
13 Semi-Ballistic Buttons, 89mm Diamter, T45 Thread with Uniface, Standard body Top Hammer Bit to match with extension drill rods for bench drilling and underground long hole drilling.