The ER20 Collet 15/32" 12-11 is a precision-made workholding tool designed for CNC machining and metalworking applications. This collet, part of the ER20 series, is a unit sold individually and is essential for securely holding and centering workpieces in lathes or milling machines. With a 15/32" size and 12-11 taper, this collet ensures a reliable and accurate grip on your workpiece, providing stability and control during machining processes.