Double Head Design for Versatility: Featuring a dual head configuration, this wrench accommodates screws of varying sizes effortlessly. The self tightening mechanism enhances grip stability, allowing quick adjustments without slipping. This multi functional tool streamlines your workflow by eliminating the need to switch between different wrenches, making it ideal for diverse repair and assembly tasks. Extra Long Handle for Effortless Torque: Engineered with an extended handle, this wrench maximizes leverage using the lever principle. The increased torque reduces physical strain, enabling users to loosen or tighten bolts with minimal effort. This ergonomic design ensures comfortable handling during prolonged use, enhancing efficiency in demanding mechanical jobs. Premium Chromium Vanadium Steel Construction: Crafted from high quality chromium vanadium steel, the wrench boasts exceptional hardness and durability. Its fully polished surface undergoes electrophoresis treatment, providing superior resistance against corrosion and rust. This robust build guarantees long lasting performance even under harsh working conditions. Adjustable Size Range for Precision Fit: Designed to fit standard nuts and bolts ranging from 8 22mm (5/16" 7/8") or 3 17mm (1/8" 11/16"), the wrench can be easily adjusted to match specific fastener dimensions. This adaptability ensures a secure grip on various hardware sizes, preventing damage and improving task accuracy across multiple applications. Wide Application Across Maintenance Fields: Ideal for mechanical engineering, machine upkeep, and automobile repairs, this versatile wrench handles screws of multiple specifications with ease. Its reliable performance makes it an essential tool for professionals and DIY enthusiasts alike, supporting efficient maintenance and assembly in diverse industrial environments. Description: This double head wrench features a versatile design that fits screws and bolts of various sizes, making it ideal for multiple applications. Crafted from high quality chromium vanadium steel, it offers exceptional durability and resistance to corrosion and rust thanks to its polished electrophoresis surface. The extra long handle enhances torque by leveraging the lever principle, reducing effort and increasing comfort during use. Compatible with standard nuts and bolts ranging from 8 22mm (5/16" 7/8") or 3 17mm (1/8" 11/16"), this multi functional wrench is perfect for mechanical engineering, machine maintenance, automobile repair, and other professional tasks requiring reliable hand tools. Item Name: Wrench Material: 45# Steel Surface Treatment: Spray Plastic Features: Double Head Design, Extra Long Handle, Adjustable Size Size Details: Length: 27cm/10.64" (Approx.) Length: 25cm/9.85" (Approx.) Length: 15cm/5.91" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 3 x Wrenches