M42 is a super high speed molybdenum steel designed for high hardness and superior hot hardness. This tool steel is an great choice for machining high strength, pre-hardened and high hardness alloys material used for the aerospace, oil and power generation industries. M42 has good wear resistance.
Also known as CPM REX M42, REM M42.
Specifications:
UNS T11342, ASTM A-600, QQ-T-590
Applications:
Used for twist drills, taps, cutters, reamers, broaches, saws, knives.