Drive Mechanics Tool Set is equipped with improved low-profile 1/4-in. Drive 72-tooth ratchets with 5° arc swing and up to a 25% thinner head, as compared to CMMT81747, CMMT81748, that helps deliver greater access in confined spaces. Packed with a broad assortment of 6-point sockets and drive tools in a durable blow mold case. The case is constructed with metal hinges and designed to fit into CRAFTSMAN® metal storage boxes for easy organization. Perfect as an addition to your current tool collection or as a starter set. LOW PROFILE RATCHET: Up to 25% thinner head for access in tight spaces (as compared to CMMT81747 and CMMT81748). 72-TOOTH RATCHET: Delivers 5 degree arc swing. EASY TOOL STORAGE: Durable Blow Molded Case. ALL IN ONE MECHANICS SET: Contains a full assortment of sockets, ratchets, and specialty bits for automotive enthusiasts and mechanics. CORROSION RESISTANCE: Full Polish Chrome Finish.