➥ steel which is anti-impact, anti-corrosive and tough, a commonly used in hardware ➥ and thus can be firmly fixed on screwdrivers and suck the screws easily upon using it ➥ Exquisite workmanship, each edge can be accurately locked screws, no damage to the screw, and the screwdriver head, surface is plated chromium, which offers a smooth and brilliant surface ➥ 10 different sizes to meet your varied requirements ➥ Can be used for manual or electric screwdriver, electric drills, air drills and other tools, Manufacturer: Yhplxyuus