A-TYPE ER-16 COLLET CHUCK NUT (3900-0686)

A-Type ER-16 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 M22 X 1.50 ~ D is 28 mm ~ L is 17.5 mm Shipping Weight: 0.1 lbs