For those small projects around the house there is no better fit than the Ultra Tough 18 piece, 3/8 inch drive, SAE and Metric deep socket set with ratchet. The sturdy heat treated carbon steel sockets with chrome plating include 8 SAE and 8 Metric sizes. The SAE sizes are: 3/8, 7/16, 1/2, 9/16, 5/8,11/16, 3/4 and 13/16 inch. The Metric sizes are: 8, 9, 10, 11, 12, 13, 14 amd 15 MM. All the sockets are 6 point for a sturdy hold on nut or bolt heads. The set also includes a 6 inch extension bar for longer reach areas. The full polished chrome finish easily wipes clean of oil and dirt. Large hard stamped size marking allow for easy identification and readability. The ratchet handle has a 36 tooth gearing and a thumb screw for threading a nut or bolt. the convenient storage rack holds all pieces firmly in place.