Material:HSS

High Speed Steel is an alloy often used for drill bits and other tools that need to be able to withstand heat.

HSS-R

HSS-R stands for rolled high speed steel and is the most common twist drill bit material ^[1].

HSS-G

HSS-G drill bits are cut. The drilling is supposed to be more effective and easier than with the cheaper HSS-R (rolled) drill bits.

Drillable materials:

• aluminum
• steel & cast steel
• non-ferrous metals (Nichteisenmetalle)
• gray iron (Grauguss)
• rigid plastics (Hartkunststoffe)