Application: ER20 collets suitable for engraving, CNC, boring, milling, drilling, tapping, spindle machines, and other processing.
Good Quality: These ER20 spring collets are made of good quality spring steel, fine workmanship, good elasticity, high precision. They are stable and practical in performance.
Easy To Distinguish: Each collet is well packed in separate protective container with label, moreover, each collect is mark with size, so it's easy to distinguish them.
Note: Collet must be placed into collet chuck nut before inserting into collet chuck.