Craftsman 220 pc. Mechanics Tool Set with Case, # 36220 (Newest Version) Tools are made of durable alloy steel with a silver finish Includes quick-release ratchets in 1/4, 3/8 and 1/2 inch drives, with 116 sockets in both metric and Universal joints and two extension bars Six combination wrenches in standard and metric Magnetic handle with 12 nut drivers, inch and metric, and 40 screwdriver bits