Craftsman 309-Piece Mechanics Tool Set, # 41309 Mechanic's Tool Set includes Metric and Standard Tools Sockets are made to fit three ratchets 1/4, 3/8 and 1/2-in. drives. 201 sockets, 3 quick-release ratchets, 6 extension bars, and 63 specialty tools 15 hex bit, inch and metric sockets; 36 wrenches, including 16 flat full-polish ratcheting wrenches Tools come with a lifetime warranty