ER-collet ER20 - Ø 3.5 repeatable accuracy 5µ

Application:
For clamping tools in ER-Collet Chucks and "Hawk Eye" ® Precision-ER-Collet Chucks.
Technical Design:
High precision design with concentricity and repeat accuracy of 5µ. All lengthwise edges deburred and rounded also. This protects the inner cone of the chuck and provides consistently high concentricity. Increased holding forces and rigidity by super finish version.