DSTEPSET - 3 Piece Multi Diameter Step Drill Sets.

3 piece multi diameter step drill sets

Available in HSS, HSCo Cobalt and HSCo Cobalt TiN Coated.

 Designed for the machining of Sheet Steel and thin materials.

 HSS + TiN = hardness 63 HRC, to machine steels up to 800 N/mm², copper, brass, bronze, aluminium up to 6% Si.

The TiN coating  hardness 2300 HV increases the tool life by increasing wear resistance.

Sizes included in Sets 12mm, 20mm, and 30mm