Model - ER-20 Spring Collet, 8mm Clamping Diameter.. Material - 65Mn Spring Steel with high abrasion resistance, high tensile strength, high elasticity, good clamping force, good elasticity, not easily deformed.. Precision - 0.01mm / 0.0004-inch. Applications - Suitable for CNC and precision engraving machines, five-axis linkage and other mechanical processing locking devices, and various types of high-precision machine tools.. Package Content - 1 x Spring Collet Chuck.
