$21.60
ER8 Collets (metric) – Shank Sizes: 3.5 – 4.0 Techniks Precision Collets have at most .0002" T.I.R. as a standard quality guarantee. Their clamping range is .
We carry a variety of ER collets in both metric and inch sizes including: ER8, ER11, ER12, ER16, ER20, ER25, ER32, ER40, ER50. RD/ER COLLET SYSTEM FEATURES.