HSS Pro metal drill bits are highly efficient and long-lasting. They are intended for drilling steel, steel castings, alloyed and unalloyed steel, non-ferrous metals, cast iron, hard plastics and other similar materials. The 118-degree cross-sharpened tip of the blade provides optimal durability at the beginning of drilling and speeds up drilling. The blade requires less drilling force than a standard high-speed steel chisel blade. 118-degree cross-sharpening Very strong material Optimum drilling performance Very precise drilling result Made of high-quality high-speed steel