469 - Sockets and Accessories240 - Wrenches42 - Striking and Struck Tools32 - Pliers, 111 Screwdrivers152 - Miscellaneous Tools 1046 pieces. 1/4", 3/8", 1/2", 3/4" Drive Tools. Designed for fastener sizes 1/16" - 2-3/8", 2 mm - 24 mm. Tools only. Modules contained: JCS-MAS-1, JCS-MAS-2, JCS-MAS-3, JCS-MAS-4, JCS-MAS-5, JCS-MAS-6, JCS-MOD1046. Enhanced version of Proto® J99950 Master Technician Maintenance Set. PROTO 1046 PIECE MASTER TECHNICIAN MAINTENANCE SET