AISI M3

M3 was developed after extensive studies of the effect of increased carbon and vanadium contents on the intermediate molybdenum-tungsten high-speed steels. The analysis was tried and proven on practically all high-speed steel applications. M3 offers the unusual combination of extremely high-edge strength at high hardness levels. With few exceptions, best life is accomplished with a minimum hardness of 65.5 Rockwell C. Experience indicates that the chemical balance achieved in M3 results in optimum combination of cutting ability, abrasion resistance, edge strength, red hardness, and long service life. M3 is more readily machined and offers less grinding resistance than higher vanadium types.

TYPICALAPPLICATIONS

Drills, Taps, End Mills, Reamers, Counterbores, Broaches, Hobs, Form Tools, Lathe and Planer Tools, Checking Tools, Milling Cutters, Slitting Saws, Punches, Drawing Dies, and Wood Working Knives.