The 27 Pcs 3/4-Inch Drive SAE and Metric Impact Socket Set Suitable for working on trailers, trucks, tractors, heavy equipment and large machinery, big service and repair jobs that need the 3/4-inch Drive Socket Set. This Impact Socket Set with adapters and ratchet handle is perfect for removing and installing wheel lug nuts, particularly suitable for most trucks, RVs, and other heavy-duty vehicles. Precisely machined impact socket set provides extreme levels of torque changes. 6-point, high-torque design that contacts and grips the stronger flat sides of nut or bolt head, not the weaker corners, prevents any rounding off corners. This means your fasteners are protected and so are your sockets. Drive Size: 3/4, Measurement Standard: SAE and Metric, Flank Type: 6-Point, Color: Black. Package quantity: 27 Pieces. 27 Pieces Impact Socket Set includes: 12 x standard SAE sockets: 7/8″, 15/16″, 1″, 1 1/8″, 1 3/16″, 1 5/16″, 1 3/8″, 1 7/16″, 1 5/8″, 1 3/4″, 1 7/8″, and 2″. 10 x Metric sockets: 22 mm, 24 mm, 27 mm, 30 mm, 32 mm, 36 mm, 38 mm, 41 mm, 46 mm, and 50 mm. 2 x Extension Bars (4″ and 8″), 1 x 18-inch Sliding T Bar, 1 x 18-inch hand ratchet bar. 1 x Carrying Case. Manufactured from heat-treated Chromium-vanadium steel CrV steel for superior performance. Long lasting durability heavy duty coating used on sockets to protect them from all the dirt, oil, and grease that could potentially break down the socket quality. Corrosion-resistant, wear-resistant, and rust-resistant.