Balanced to 18,000 RPM Tolerance is .0003" Maximum Thread Tolerance Class: 4H-Class Material is 42 CrMo Hardness is HRC 50-52
Description
Um-Type Er-50 Collect Chuck Nut - Balanced To 18,000 Rpm - Tolerance Is .0003" Maximum - Material Is 42 Crmo - Hardness Is Hrc 50-52 - Thread Tolerance Class Is 4H-Class - Thread Is M64X 2.00 - D Is 78 Mm. - L Is 35.5 Mm.