from steel with a electroplated surfaces, this adapter is rusts resistant and wear proof, ensuring longevities even in tight space seamlessly conversion with our 6.35mm to 4mm adapter, designs to fit a wide ranges of tool and enhances your efficiency Featuring a powerful grip, this adapter secures holds screws, boosting your productivity during tasks Great for household repairs like furniture assembly and appliance maintenance, as well as industrial applications such as equipment installation and machinery repair Great for professional repair technicians seek to improve their maintenance efficiency and craft enthusiasts tackling home repair projects, Manufacturer: Zeizafa