RCBS was founded over 60 years and has been producing high quality reloading equipment ever since. The RCBS Collet Bullet Puller is designed so the reloader can easily pull jacketed bullets from brass cases without damaging either. The puller utilizes standard 7/8″-14 threads so it will work almost any single stage reloading press. Just get the die setup in the press with the appropriate caliber collet (sold separately), place the cartridge with the bullet to be removed in the press, lift up the ram, then tighten the collet, lower the ram and the bullet is pulled out. No more hammering away with inertia bullet pullers to break down ammunition. Different caliber collets are sold separately (this unit does not ship with any collets). Not for use with non-jacketed bullets.