The Genius Tools Master Tool Set, No. MS-926TS, is a 926-piece 1/4"-, 3/8"- and 1/2"-drive metric and SAE complete master tool set. The tools are contained in blow-molded plastic trays sized to the company's 39" tool cart and top chest. Ideal for the newly graduated tech, the experienced tech who needs a second set or wants to replace a mixed box. This master set has been popular with Genius Tools-sponsored race teams as it meets all of their trackside needs on race day.