SHARS 11PCS 1/8 - 3/4 ER32 COLLETS SET MILLING LATHE DIN 6499/B. Only SHARS ER Collets come with precision ground surface, degree of finish Ra 0.4, which twice much better than other brands, and more durable.
Hole Dia: 1/8 - 3/4 (1/8, 3/16, 7/32, 1/4, 5/16, 11/32, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4). Made from alloy spring steel and hardened to HRC 44-48. All fractional size is true imperial size, not a metric conversion size. All collets are checked its runout individually on 4 contact points by a high tolerance bench marked testing rod. On size 1/8 and larger the. "; under size 1/8" the runout is. Each size of ER16 collet has collapsing range of. 039 (1 mm); the size of the collet is the largest size it can hold and able to hold anything smaller within the collapsing range. Running True at High Speed turning. Fit all R8, morse tapper, CAT, BT, CNC, ER16, chuck or holder. This collet size is true fractional size, not a metric converting size and the surface on this collet has been precision ground to increase its tool life. Founded in 1978, Shars Tool Company has been serving the industrial community and machine shops in the USA for over 30 years. We carry high quality collets, with certificate in each set.