The Redding 6.5mm Caliber Carbide Sizing Button Kit makes inside neck sizing smoother and easier without lubrication. This premium upgrade kit allows you to enhance your existing die sets with carbide technology.6.5mm caliber carbide sizing buttonNo lubrication required for smooth operationFree-floating design self-centers in case neckCompatible with bottleneck cartridges 20 through 338 caliberComplete kit includes carbide sizing button retainer and spare decapping pinSKU: RDNG-48263Perfect for reloaders looking to upgrade their die sets with professional-grade carbide technology for consistent efficient case preparation and enhanced reloading performance.