259 - Sockets and Accessories128 - Wrenches32 - Striking and Struck Tools14 - Pliers30 - Screwdrivers34 - Miscellaneous Tools 497 pieces. 1/4", 3/8", 1/2" drive tools. Designed for fastener sizes 1/16" - 1-1/2", 2.5 mm - 24 mm. Tools Only. Sub-sets contained: J99900, J99905, J99915. PROTO 497 PIECE MASTER TECHNICIAN MAINTENANCE TOOL SET