Introducing the 3/8" ER16 Precision Collet by Techniks, model number 04216-3/8. This high-quality collet has a collet range of .336-.375" and belongs to the ER16 collet series. It is perfect for use in CNC, metalworking, and manufacturing industries for secure workholding. The collet offers a T.I.R of .0002", ensuring precision accuracy for your projects.