Model - ER-25 Spring Collet Set (3/16", 11/32", 1/4", 7/16", 17/32", 5/8" Clamping Diameter, 1 piece per size). Material - 40Cr Steel. Precision - 0.015mm / 0.0006-inch. Applications - Widely used in machining centers, general milling machines, CNC milling machines, engraving machines, high-speed machines, and other processing.. Package Content - 6pcs x Spring Collet Chuck.
