Assure your mixed brass is bulge free with the Bulge Buster Kit and appropriate Lee Factory Crimp Die. This push-through die adapter will quickly remove the annoying bulge rings that shell holder-constrained dies simply can't reach. This kit included extension sleeve, push through punch, catch container and complete instructions. Die not included, sold separately. Size Dies Required Type Case Prep Kit Grain N/A Finish Silver/Red Series Kit Weight 45 oz Caliber 380 acp10 mm40 sw41 ae45acp45 gap45 winches Function Remove Case Bulge Includes Extension Sleeve/Push Punch/Catch Container Material Stainless Steel/Plastic Quantity 1 Media Type N/A Media Capacity N/A Compatible With Carbide Crimp Dies Micrometer Type N/A