ER-25 Collet Block, Square and Hex Collet Chuck Block Set, Workholding Holder, 0.005 mm Accuracy, High Concentricity, Finish Machining ... Only 2 left in stock - ...
Total runout less than .0003 on these precise ER25 collets · Made from Alloy spring steel and fully hardened · All critical collet surfaces are precision ground ...