The 30 Caliber Carbide Sizing Button Kit makes inside neck sizing smoother and easier without lubrication allowing you to upgrade your existing die sets with premium carbide technology.30 Caliber Carbide Sizing Button KitFree-floating carbide button self-centers in case neckNo lubrication required for smooth operationCompatible with bottleneck cartridgesIncludes carbide size button retainer and spare decapping pinSKU: RDNG-49307Perfect for reloaders seeking improved performance and convenience this carbide upgrade eliminates the mess and extra steps of lubrication while providing superior durability and consistent results.