Rotation Accuracy: 0.005 (under no-load condition)
Tip Shaft Material: Carbon Tool Steel T10, Heat Treatment Hardness HRC60±2
Main Body Material: 40Cr, Heat Treatment Hardness HRC45-48
Alloy Head: Zhuzhou Diamond Brand Hard Alloy, Grade: YG8, Hardness HRC89
Rotation Speed: 3000 revolutions per minute
Bearings: Genuine Luoyang Bearings