Tool Set, 200 pieces Mechanic's Tool Set. A full assortment of wrenches ratchets, sockets and accessories for a wide variety of mechanical projects. Chrome vanadium steel construction and nickel-chrome plated for optimal strength and durability. Sockets and extensions are knurled for easier use. Full length SAE & Metric Ratcheting combination wrenches are drop forged and heat treated for maximum durability. Magnetic bit diver with an assortment of screw and nut driving bits. Durable storage case.From shadetree mechanic to serious DIYer, the need for reliable and performance-capable tools is a constant. Fortunately, the 200-piece Channellock Mechanic's Set delivers the quality, dependability and performance demanded by both novices and professionals. This comprehensive tool set is anchored by ANSI specified oval head design, reversible 72 gear-teeth ratchets covering ¼, ⅜ and ½" drives. This supports the broad assortment of standard and deep well sockets in SAE and Metric sizes. The Channellock set doesn't stop there — it includes one of the most excitiing developments in hand tool technology: ratcheting combination wrenches. Fourteen ratcheting wrenches cover the most commonly used fasteners for both SAE and Metric applications, with sizes covering 5/16 to 5/8" and 8 to 15 MM.  An equally impressive assortment of driver bits and nut drivers help round out the set so it can truly tackle most any job.  All contents are housed in a durable carrying case for easy storage and easier portability.