This 23 pc. combination impact socket set offers a variety of SAE and Metric sockets along with an extension, adaptor and quick release ratchet. The 72 tooth count ratchet comes equipped with a quick release button to easily attach or remove a socket. These sockets have DirectTorque technology to help prevent rounding of fasteners and provide better grip.Includes(6) 1/2 in. Drive Impact Sockets: SAE 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16, 1, Metric 13, 14, 15, 16, 17, 18, 19, 21, 22, 24Features O-ring and retaining pin compatible Laser etched markings on sockets for easy identification DirectTorqueTechnology helps prevent rounding of fasteners and provide better grip Impact-ready with heat treated CR-440 steel Prop 65No Drive Size: 1/2 in Product Type: Impact Socket Material: Steel, Heat Treated CR-440 Steel Product Finish: Black Oxide Length: 14.75 in Width: 8.07 in Height: 2.68 in Weight: 8.0 lbs Unit Of Measure: SAE & Metric Country of Origin: Taiwan Impact Or Standard: Impact Etched Or Stamped: Yes