Ram 96030 High-Speed Steel Drill Bit Set - Black | Durable Metal & Wood Drilling Tools for DIY Projects & Home Improvement

This HSS drill bit is made of highly alloy steel. Its generally high hardness (> 60 HRC), is guaranteed up to a temperature of 600 C. Its wear resistance is wear and tear and its high tenacity at high temperature give it a good cutting quality. Sharpening can be done by hand.