Features: Engineered with integrated forging technology and a universally 1/2inch adapter hole, this key adapter delivers 30% high load capacity and compatibility with various tools like ratchets wrenches for enhanced versatility in tight spaces. Featuring a black oxides anti corrosions finish and algorithm optimized grip design, the carbon steel construction ensures 20% greater hardness than standard materials while preventing slippage during high torques applications. Ideal for mechanics, enthusiasts, and automotive professional requiring torques transmission in demanding environments like garages or outdoor worksites. Perfect for automotive repairs, machinery maintenance, and household projects where rust resistance and secure fastener engagement are critical in confined or dusty areas. Its seamlesslystructure and ergonomic double grip geometry maximize durability while solving stubborn bolt challenges, making it a must have carbon steel tool adapter for industrial grade performances. Specifications: Component:Carbon Steel Suitable for 1/2inch" drive or 21mm hexagonal drive Size:Approx.80mm/3.15''x50mm/1.97'' Package Includes: 1Piece Wrench Extender Adapter note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.