The Lee Case Trimmer and Lock Stud was specifically designed for use with Lee case length shellholders and gauges. This trimmer and lock stud was manufactured from hardened steel to ensure easy and accurate case trimming ability that meets SAMMI specifications. Not only does the Lee Case Trimmer and Lock Stud ensure accurate case trimming each and every time, but the shaft ensures that the tool can be turned either by hand or used with an electric drill. This cutter and lock stud works for all calibers, so you do not need to waste money buying multiple tools or adapters.