Type for HSK/BT/BBT/SK/CAT/NT/VDI/MT/R8 shank, taper tolerance:≤AT3
100% balanced to G6.3/12000RPM, G2.5/20000RPM, 25000RPM, 30000RPM
Material:20CrMnTi
Hardness:56-60HRC
Carburizing depth:>0.8mm
-190°C long cryogenic, nearly all of the residual austenite into martensite;
Long stereotyped thermal limitation removal of grinding residual stress.