Rock Drilling Tools Pilot Adapter 6 Thread Drill Shank Model R25 This type of bit is used for making large cut holes in drifting and tunneling. A smaller hole is first drilled and then reamed to the final size ... Read More
small hole drilling tools H25 drill rod with Shank 22*108mm, length 3050mm Product Description Drifting and extension drill rods are for drifting ,tunneling ,long hole drilling ,bench and production drilling ... Read More