Features high polish SuperKrome® finish, which protects the tools from the harsh working environments found in today’s workplace. Provides long life and maximum corrosion resistance. Features SureGrip® hex design, which drives the side of the fastener, not the corner, to avoid edge breakage which can occur on rusted or damaged fasteners when a traditional straight cornered hex tool is used. Professional Ratchet features a completely enclosed ratcheting mechanism which is easy to remove and replace for cleaning or rebuilding. Triple tooth contact provides smooth ratcheting action with little back movement. Professional series ratchets also feature hardened pawl and teeth for durability and long life. Chamfered ends help lead the socket over fastener heads. Includes standard (3/8″, 7/16″, 1/2″, 9/16″, 5/8″, 11/16″, 3/4″), deep (3/8″, 7/16″, 1/2″, 9/16″, 5/8″, 11/16″, 3/4″), 5/8″ spark plug socket, 7.5″ ratchet, extensions (3″, 6″) and molded case. Includes standard (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19mm), deep (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19mm) and metal storage rails.