
AISI M1 Molybdenum High-Speed Steel
AISI M1 (UNS T11301) — tungsten-free Mo HSS, HRC 63–65. Compare with M2, M3, M35 for slitter blades and drills where M2 is overkill.

AISI M1 (UNS T11301) — tungsten-free Mo HSS, HRC 63–65. Compare with M2, M3, M35 for slitter blades and drills where M2 is overkill.