Wilmar W38911 20piece 3/8 inch Drive SAE Socket Set. Socket openings are designed to reduce fastener rounding, with chrome vanadium alloy steel construction for strength and durability and their polished nickel chrome plated finish resists corrosion. Set includes: 7 standard sockets, 7 deep sockets, 2 spark plug sockets, universal joint, 3/8 inch drive quick release teardrop ratchet, 3 and 6 inch extensions. 6 point standard socket sizes: 3/8, 7/16, 1/2, 9/16, 5/8, 11/16 and 3/4 inch, 6 point deep socket sizes: 3/8, 7/16, 1/2, 9/16, 5/8, 11/16 and 3/4 inch, spark plug socket sizes: 5/8 inch and 13/16 inch.