High-Quality Material: Crafted from superior -MO steel, this double head impact wrench nut set is phosphated for enhanced durability. It boasts exceptional impact, torsion resistance, and wear resistance, making it ideal for high-intensity environments and ensuring a prolonged lifespan. Fit: Each hexagon socket is meticulously engineered to provide a snug fit, securely gripping nuts without slipping or damaging edges. This reduces the risk of nut damage, ensuring clean, stable disassembly and assembly every time. Versatile Double-Sided Wrench: This tool features a 1/2 inch drive and accommodates 18.5 mm, 19.5 mm, 20.5 mm, and 21.5 mm fasteners. The double-sided impact socket allows for quick size adjustments Wide Application: Standard socket size ensures compatibility with most devices, facilitating a variety of complex tasks in machinery maintenance, vehicle repair, and mechanical engineering. Extended Reach: Included is a 75 mm 1/2 inch extension that increases your working area and reach. Equipped with a spring ball brake system, it ensures a secure connection and smooth component interaction, enhancing overall efficiency. Description/Features: Experience professional-grade efficiency with our double-sided, double-head wheel nut wrench socket set. Designed for high-performance disassembly and assembly, this tool set features sockets made from high-strength chrome steel, known for its superior impact and torsion resistance. The of each socket is phosphated to enhance wear resistance, prevent , and durability in high-intensity work environments, extending the tool's lifespan. The -engineered hexagon sockets provide a firm grip on nuts, reducing slippage and the risk of damaging bolt edges. Engraved size markings on each socket make identification quick and easy, streamlining your workflow. This set is ideal for complex tasks in machine maintenance, vehicle repair, and mechanical engineering. Specifications: Product Name: Double Head Impact Wrench Nuts with Extension Material: Chrome Steel Hex Sizes: 18.5 mm, 19.5 mm, 20.5 mm, 21.5 mm Drive: 1/2 inch (12.5 mm) Total Length of Extension Bar: 63 mm Color: Black Package Contents: 2 x Wheel Nuts 1 x Extension Rod 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.