HSS, Cobalt, Carbide Drills SET

Drill sets include various types of drill bits, usually high speed steel (HSS), HSSE (cobalt high steel) or carbide. They are used to create holes in materials such as metal, wood or plastic. HSS drills are durable, while cobalt and carbide offer greater heat resistance and hardness for harder materials. They usually measure hole diameters in millimeters (mm) or inches (in).