... for vaired cutters and cold work mole with wearproof. M2 high speed steel round bar (1.3343 )1.Chemical composition: ... .030, Cr:4.10, W:6.00, Mo:4.80, V:1.852.Annealed Hardness:255, Hardening:1210~1230 , ... vaired cutters and cold work mole with wearproof. M2 high speed steel round bar (1.3343 )1.Chemical composition: ... .030, Cr:4.10, W:6.00, Mo:4.80, V:1.852.Annealed Hardness:255, Hardening:1210~1230 , ...