Save time, space and eliminate a loading bench top full of holes. Simply attach the Base Plate-3 to any work surface, then use the pre-tapped, letter-coded holes to quickly mount or dismount RCBSA(R) Pro Chucker 5, Pro Chucker 7, The Grand shotshell, Rock Chucker Supreme, Summit, Trim Pro-2 Case Trimmers, Trim ProA(R), Powder Measure Stand, Lube-A-Matic-2, Reloader Special, Rock ChuckerA(R), Pro 2000A(R), Turret Press, AmmoMasterA(R), Partner Press and the APSA(R) Bench Mounted, Automatic and Priming Tools. Fastening hardware included. Measures approximately 10" x 6" x 1". Mfg: Rcbs