Description: These screwdriver bits are made of high quality S2 material which is durable, anti-impact and tough. Magnetism enables them to fix on screwdrivers firmly. With cross head, they are widely used in electric screwdrivers, hand screwdrivers, electric drills, air drills and so forth. What are you waiting for? Get this set and make your life easier. Features: 1. Made of high quality S2 steel material which is durable, anti-impact and tough, a commonly used material in hardware. 2. Magnetic and thus can be firmly fixed on screwdrivers. 3. 6 different sizes to meet your varied requirements. 4. Fit for electric screwdrivers, hand screwdrivers, electric drills, air drills and so forth. 5. Great accessory for you. Specification: Materials: S2 alloy steel Color: As shown in the pictures Type of Head: Hexagon Type of Shank: Hex Dia. of Shank: 6.35mm / 1/4 inch Length of Screwdriver: 100mm / 3.94 inch Size of Bit: H2.5, H3, H4, H5, H6, H8 Quantity: 6pcs Package Includes: 6 x Screwdriver Bits Notes: Do not turn the screws with unmatched size, in case get both screw and bit damaged.