Features: Engineered with a seamless 1 piece design, this impacts wrench socket integrates multiple hexagonal key sizes (4mm 10mm) for rapid bolt fastening/dismantling, eliminating tool switching hassles in auto repair and craft projects. Constructed from heat treated high strength alloy steel, the corrosions resistant socket offer 3x enhanced durability compared to standard tools, ensuring efficient performances under 150Nm torques. Ideal for professional mechanics, workshop technicians, and home craft enthusiasts seeking accuracy tools for heavy duty mechanical tasks and household maintenance. Perfectly adapts to automotive engine repairs, industrial equipment assembly, and furniture installation scenarios where speed, compatibility with air tools, and ergonomic handling are critical. Universally suitable with mainstream impacts wrenches, this multi functional socket set combines industrial grade resiliences with user friendly operations, streamlining workflows in garages, factories, and home workshops. Specifications: Materials: Alloy Size: Length 7.85cm/3.09inches Properties: H22/H20/H19/H18/H17/H16 Package Includes: 1Pc Heavy Duty Alloy Steel impacts Socket Set 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.