Features: This electric wrench adapter head is engineered for durability and resistance to wear and rust, ensuring a long lastings tool addition. The adapter features antislip knurled designs that enhances grip comfort and oil resistance, while the internal concave square constructions evenly distributes force across bolt heads, reducing wear. For professional handymen and diyer enthusiasts alike, this versatiled adapter head is designing to fit various electric wrenches, including 1/2" pneumatic wrenches and compacts air guns. Whether you're working in automotive repair, constructions, or home maintenance, this fast release self locking adapter allows for swifting and efficient tool changes, maximizing productivity. Elevates your tool collection with this multiuse electric wrench adapter head; its builtin steel balling locking mechanism ensures high concentricity and secure attachment, making it essential component for any high concentricity work environment. Specifications: Component:Metal Size:Approx.5cm/1.97inch Style: industrial grade/thickened heavy duty Package Includes: 1pcs Socket Adapter note: ①.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. ②.Due to the differences between different monitors, the picture may not reflect the actual coloring of the item. Thanks for your understandings.