The Hornady Precision Reloader Accessory Kit will allow you the opportunity to produce the most accurate reloads possible. This kit includes a Concentricity tool, Cam Lock Trimmer, Cam Lock Power Adapter, Lock-N-Load OAL Gauge Curved, Lock-N-Load Comparator set, Lock-N-Load Comparator Headspace kit, Lock-N-Load case prep trio and a steel dial caliper.