These bits have high-speed steel bodies with a titanium coating. The steel core ensures they can spin at their optimal speed, while the coating gives them extra resistance to the high-temperatures ...

Buying a drill bit set saves money and — as they invariably come in some kind of case — gives you convenient storage and easy identification. However, what might seem like minor differe… ...

6 of the pieces are made of high-speed steel, ... HHS (High-Speed Steel) A counter drill bit set made of high-speed steel is of better quality than carbon steel drill bits.