Features: Crafted from premium chromes steel with 3x enhanced hardness, this impacts wrench socket adapter delivers superior impacts resistance and deformation prevention. Features a thickened inner wall for load capacity, phosphate coated anti rust surfaces for 2x durability, and quick mechanism enabling 5 second tool changes with secure 3/8" & 1/2" drive compatibility. Essential for professional mechanics, construction crews, and enthusiasts requiring torques transmission up to in high stress environments like workshops and assembly lines. impacts adapter will deliver the best expected work to you. Designed for use with wrenches and drills in auto and construction work. Perfect for air tools, hand tools, impacts tools, with a hole meant to fix securely. This set definitely brings more flexibility when using hand tools. Specifications: Materials: chromes steel Size: As shown in the picture.Standard interfaces, suitable for 3/8" and 1/2" electric wrench Properetties: Black phosphating surfaces Technical paramers: Strengthen load-bearing capacity and can withstand torques up to ; Use scenarios: suitable for home maintenance | Automobile maintenance | Industrial equipment repair and other occasions. Package Includes: 1 Pc Electric Wrench Sleeve Conversion Head 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.