ER16 COLLETS SET 8 PCs 1/8" to 3/8" FOR MILLING LATHE PRIME QUALITY WITH TESTED RUNOUT 0.0003"

Suitable for R8, MT, CAT, BT chuck holders. Made from alloy spring steel and hardened to HRC 44-48. Tested T.I.R: 0.0003" Indicated fractional size is TRUE imperial size NOT from metric conversion. Hole Size: 1/8", 5/32", 3/16", 7/32", 1/4", 5/16", 11/32", 3/8". Weight: 2 lb. imensions: 8 x 4 x 4 in.