Lee 90926 Collect 460 Smith & Wesson Magnum Crimp Die This Lee Collet-Style Crimp Die incorporates a Collet to apply a rifle type crimp to the case. Makes these very difficult to crimp cartridges a delight to reload. Bullets do not need a crimp groove, as the Collet is so powerful it will form one. NOTE: This die is not carbide. Specifications: Cartridge: 460 SW Magnum Number of Dies: 1 Die Type: Profile Crimp Die Threads: 7/8"-14 ShellHolder Included: No Storage Box Included: Yes