5in (127mm)

ISO H Hardened Steel (42)
Tool & Hardened Steels, Hardened cast iron

ISO K Cast Iron (42)
Gray cast irons, long and short chipping irons

ISO M Stainless Steel (42)
Austenitic Stainless, Free machining steels, Alloy cast iron and malleable irons

ISO N Non-Ferrous Materials (60)
Aluminium, Non-ferrous metals & other materials (wood, plastics, composites etc)

ISO P Steel (42)
Plain carbon, Free-machining carbon, Alloy, Tool, PH Stainless and Cast steels

ISO S Heat Resistant Alloys and Titanium (42)
Cobalt, Iron or Nickel based heat resistant alloys and Titanium