Hex 15 small integral drill steel for Y6/Y8 jack hammer , carbide diameter 16-20mm, and 250-300 mm length, used in factory to drilling 16-20mm for shim & wedge splitting stone blocks in factory
Rock drilling tools ProDrill provides a variety of integral drill steel and plug hole rods in a full range of lengths and steel hex diameters for all of your hand-held pneumatic drilling needs.
It can reduce the expense of impact energy, improves the drilling speed and efficiency, also it can be used for drilling hole diameter from 16mm to 20mm usually. Each rods use premium quality alloy steel and excellent quality tungsten carbide to assure.