Craftsman 262-Piece Standard SAE & Metric Mechanics Tool Set w/ Hard Case Chest. Low profile ratchet: up to 25% thinner head for access in tight spaces (1/4″ dr & 3/8″ dr only as compared to cmmt81747, cmmt81748, & cmmt81749). 72-tooth ratchet: delivers 5 degree arc swing. All in one mechanics set: contains a full assortment of sockets, ratchets, wrenches, and specialty bits for automotive enthusiasts and mechanics, packed in a durable 3-drawer box. One handed locking dial: spring loaded dial enables users to open and close drawers with one hand and lock drawers when not in use. Convenience: drawers can be nested on top of the tool box for easy access and temporary storage. VERSASTACK compatible: this flexible storage system allows for custom combination based on user needs.