Features a micrometer adjustable cutter that allows for change in length in increments of 1/1000" without moving the case. The cam lock secures the case in place in the shellholder so all trim lengths are measured from the head of the cartridge. Uses standard Hornady shellholders and pilots. .22, 6mm, .270, 7mm, .30, .38 and .45 pilots included. Shellholders sold separately.