Description; From shadetree mechanic to serious DIYer, the need for reliable and performance-capable tools is a constant. Fortunately, the 200-piece Channel lock 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 Channel lock 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. About this item Complete, dependable tool set Great for use at home or in professional settings 72 quick-release oval head ratchets 14 innovative, ratcheting combination wrenches Convenient carrying case Constructed of durable chrome vanadium steel Specifications ½”, ⅜”, ¼” drive sockets and accessories Drop-forged chrome vanadium steel Full polish, flat combination wrenches Assembled Size 14.75×17.75×4.50