The Forster Collet Style Bullet Puller is carefully constructed out of solid steel that provides the precision to carefully pull bullets from brass cases. Once the collet is inserted into the bullet puller the reloader turns the handle on the puller that tightens the collet against the bullet. The reloader lifts the ram down and the bullet is in the collet. Release the pressure from the collet and the bullet will drop free. Not designed to use on lead bullets. Fits: Forster Collet Bullet Puller and Forster Universal Collet Style Bullet PullerNotes: Collet only, Bullet puller sold separately (Item 419-303), Bullet Diameter the collet is designed to pull is located in the description