When it comes to the small-hole drilling tools equipped with pneumatic & hydraulic rock drills,Taper drill equipments is prevailingly used for rock drilling, blasting holes and other drilling works especially in the mining application and dimentional stone industry. The tapered rods work together with taper drill bits , has different length for various applications, our taper drill rods come in a variety of taper angles, generally, the light duty rock drill usually use 7 taper or smaller taper angle, the heavy duty rock drill mainly use 11,12 taper angle. And the basic theory is that taper drill rods and taper drill bits must be in the same tapered degree. We provide tapered rods in a full range of shank configurations and steel hex diameters for hand-held pneumatic drilling needs.

Pls check the following rough Spec.Sheet.