RCBS Precisioneered Reloading Dies are for shooters who want reloads that deliver the same quality performance of their guns. Precision-drilled and reamed to the same exacting standards as the finest gun mechanisms, these dies feature the rigid specifications RCBS has developed over its 60+ years of die manufacturing. Find out why RCBS produces more reloading dies in more calibers (more than 3,300) than any other reloading die manufacturer. The durable RCBS 3-Die Carbide Set consists of a Carbide Sizer Die with decapping unit, Expander Die, Seater Die with taper crimp, and bullet seater. The Carbide Sizer Die with decapping unit eliminates the need for case lubrication before sizing. Expander Die for expanding and belling the case mouth, plus a Seater Die with Taper Crimp. Properly hardened and hand polished to withstand years and years of the abrasive type of wear caused by case sizing. Large, easy-to-adjust hex lock rings utilize hex head setscrews. Standard 7/8"-14 thread. Shell holder not included. Delivers top quality reloads Precision drilled and reamed to exacting RCBS standards 3 die set Carbide Sizer Die with decapping unit - no need for case lubrication Expander Die Seater Die with taper crimp Properly hardened and hand polished Standard 7/8-14 thread