664 - Sockets and Accessories241 - Wrenches51 - Striking and Struck Tools39 - Pliers91 - Screwdrivers172 - Miscellaneous Tools 1258 pieces. 1/4", 3/8", 1/2", 3/4" drive tools. Designed for fastener sizes 1/16" - 2-3/8", 2 mm - 26 mm. Tools only. Modules contained: JCS-MAS-1, JCS-MAS-2, JCS-MAS-3, JCS-MAS-4, JCS-MAS-5, JCS-MAS-6, JCS-MAS-7. PROTO 1258 PIECE MASTER TECHNICIAN MAINTENANCE SET