ER16 Jet Coolant Sealed Collets 3-10mm Clamping Range <10 Micron Accuracy, ER20 Jet Coolant Sealed Collets 3-13mm Clamping Range <10 Micron Accuracy, ER25 Jet Coolant Sealed Collets 3-16mm Clamping Range <10 Micron Accuracy & ER32 Jet Coolant Sealed Collets 3-16mm Clamping Range <10