Technical Specification Item Collet Set Collet Series ER16 Collet Type ER16 Face Shape Round Max. Size 10mm Overall Length 27.5mm Head Dia. 17mm Coolant Fed Coolant Through Compatible with Product Type DR, RD, ESX, AR, BR Series Collets Features No Plugs to Fail, Protects Toolholder from Contaminants, Sealed to 2000 psi For Use With Power Coat Nut Material - Machining High Speed Steel Min. Size 3mm Number of Slots 6 Number of Pieces 15 Includes Wooden Collet Tray This listing is for each. Collet Series : ER16 Item : Collet Set Includes : Wooden Collet Tray Capacity : 0.5mm Size/Range : 0.141 to 0.381 Number of Pieces : 15 Collet Type : ER16 Number of Slots : 6 Max. Size : 10.00mm Compatible with Product Type : DR, RD, ESX, AR, BR Series Collets For Use With : Power Coat Nut Min. Size : 3.00mm Overall Length : 27.50mm Face Shape : Round Head Dia. : 17.00mm Features : No Plugs to Fail, Protects Toolholder from Contaminants, Sealed to 2000 psi Coolant Fed : Coolant Through Material - Machining : High Speed Steel Country of Origin (subject to change) : Taiwan, Province of China