T15 is used for cutting tools that are exposed to extremely rigorous heat or abrasion in service. The M tool steels generally are considered to have molybdenum as the principal alloying element, although several contain an equal or a slightly greater amount of such elements as tungsten or cobalt.
Hardslick Coating. Range: up to 37Rc. Excellent results on steel, stainless steel, nickel alloys and aluminum. Reduces galling and seizing