b'HaasTooling.comER Collets Sets*Images shown are for illustration purposes only.Actual product appearance may differ.2.Explore Now1.TAPSEALEDSMOOTH3.TAPAll Your Metric ER Collet Needs In One KitO ur 117-piece Master Metric ER Collet Kit is a kit that every new shop or machinist should have! This kit provides a wide range of bore diameters from 1mm to 20mm in either straight bore, sealed, or tap collets.28 | Get up to -8% with Winners Circle'