COLLET ER40 SET METRIC, 23 pieces

ER40, 23pcs., with holes of 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25 and 26mm
Made of high alloy spring steel.
Hardened surface to 44-48 HRc.
Maximum gripping force with 16 jaws.
for hole size under 10mm Runout precision of 10µm (Concentricity of 5µm).
for hole size above 10mm Runout precision of 15µm (Concentricity of 7.5µm).