The 174 piece Mechanics Tool Set includes 93 sockets in 1/4, 3/8 and 1/2 in. drive sizes, both metric and standard sizes, deep and standard depths. The set also includes 12 (6pt) combination wrenches in metric and standard sizes, 3 quick-release ratchets (each drive), 2 extension bars and 76 specialty tools. 20 combination ignition wrenches are included. The Mechanics Tool Set comes in a convenient and portable briefcase style plastic carrying case.