The Lee Case Conditioning Kit includes a cutter with lock stud, chamfer tool, and primer pocket cleaner to prep brass for reloading. The all-inclusive Lee Case Conditioning Kit works on small and large primer pockets, while the cutter and lock stud are for use with Lee’s case length gauges (sold separately). Chamfer tool chamfers and deburrs inside and outside of case necks Double ended primer pocket cleaner works with both large and small primer pockets Cutter and lock stud can be used by hand or with electric drill Hardened steel construction The Lee Case Conditioning Kit contains everything you need to get your brass prepped for reloading. Mfg: Lee Precision