Precise UM-Type ER-16 Collet Chuck Nut, Thread M22 X 1.5 - 3900-0688 Balanced to 18,000 RPM Tolerance is .0003" Maximum Material is 42 CrMo Hardness is HRC 50-52 Thread Tolerance Class is 4H-Class
Precise UM-Type ER-16 Collet Chuck Nut, Thread M22 X 1.5 – 3900-0688
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