Type: Impact Wrench Hex Socket Head Optional size: 8mm, 10mm,12mm Made of high-quality material, high hardness and durability. Multiple specifications to meet a variety of needs. Uniform square hole connector, 1/2inch (12.7mm) interface, suitable for AC electric wrench, lithium wrench, pneumatic air tool and other machines Length: 128mm Specifications of ToolsHub 1/2 Inch Drive Long Deep Hex Socket Impact Wrench Set, 8-10-12mm for Home Repair Tools Ratchets_Size:1/2inch Type_Of_Sockets: Hex Sockets Ratchets_Gear:Geared Color: Black Material: Metal Package Contents: 3 * Hex Socket Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.