SEALED COLLET ER16 SET METRIC, 8 pieces

8 pieces of Sealed ER16 with hole sizes: 3, 4, 5, 6, 7, 8, 9, 10mm.
Made of high alloy spring steel.
Hardened surface to 44-48 HRc.
Maximum gripping force with 16 jaws.
Runout precision of 10µm (Concentricity of 5µm).