Capstone FE-Max: Suitable for medium carbon steel bars, C 0.45 %.Capstone HA-Max: Suitable for Alloy Steel & High Carbon steel bars.Capstone SS-Max: Suitable for Stainless steel bars.Capstone FEP-Max: Suitable for carbon steel pipe cutting.Capstone AL-Max: Suitable for Aluminium & Aluminium alloy bars.Capstone CU-Max: Suitable for copper & Brass.