CRAFTSMAN OVERDRIVE 121-Piece Standard (SAE) and Metric Gunmetal Chrome Mechanics Tool Set with Hard Case (CMMT99121L)Get leverage for automotive applications with this versatile OVERDRIVE Mechanics Tool Set (121 pc.). Featuring sockets, wrenches, ratchets, and more, these tools offer a sleek finish, easy-to-read markings, and Tight Torque Technology.Turns in tight spots Access confined areas with a high-count 180-tooth ratchet designed to minimize arc swingTight Torque Technology Complete difficult jobs with sockets designed to remove fasteners rounded up to 70%. Tight Torque Technology also helps prevent the rounding of fasteners in common maintenance and automotive applicationsIncreased leverage Loosen stubborn fasteners with a long panel design that provides increased leverage versus CRAFTSMAN raised panel wrenchesQuick-find markings Quickly find the right tool for the job with easy-to-read sizes on each socket and wrenchSleek, modern finish Get rust resistance with a gunmetal-chrome finishMeets or exceeds ASME Specifications These products are engineered to meet rigorous standards and satisfy the most demanding usersVersatile functionality Complete a wide range of jobs with 121 pieces including sockets, ratchets, wrenches, hex keys, specialty bits, and moreGeneralFinishGunmetal chromeSub-BrandOVERDRIVEFeatures1-in Drive Ratchet IncludedNoNumber of Additional Tools Included481/2-in Drive Ratchet IncludedYesNumber of Drive Tools41/4-in Drive Ratchet IncludedYesNumber of Extensions33/4-in Drive Ratchet IncludedNoNumber of Quick Release Ratchets33/8-in Drive Ratchet IncludedYesNumber of Sockets56Case TypeHardNumber of Wrenches10Deep Socket(s) IncludedYesShallow Socket(s) IncludedYesDrive Type6-pointSpark Plug Socket(s) IncludedYesIntermediate Socket(s) IncludedNoTotal Number of Pieces121Measure TypeStandard (SAE) and MetricWarrantyLifetime