Features: * The accuracy and durability of this screwdriver meets higher standards. Use them for DIY home projects or job sites.* Thanks to the magnetic design, the parts adopt a strong permanent magnet, which can fix screws firmly. Perfect spot every time.* Standard shank diameter, 6.35mm opposite side hex shank, 1/4 standard shank diameter, suitable for all kinds of pneumatic screwdrivers, electric screwdrivers and cordless screwdrivers.* Straight and concentric angles can effectively reduce the rocking phenomenon bits.* Made of durable alloy steel, high hardness, strong torsion, long-term use. Specifications: Product Name: Hexagon Screwdriver Material: Chrome Vanadium Steel Color: Brown Head: Hex Shank: 1/4 Inch Hex Head Magnetic: Yes Hole: No Length: (Approx.) 50mm Size: H3.0, H4.0, H5. 0, H6.0 Suitable for: electric screwdriver, screwdriver, drill, hand tools such as general wind group Quantity: 4 pcs set Package includes: 4 screwdrivers Note: 1. Transition: 1cm=10mm=0.39 inch.2. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.3. Please allow slight manual measurement deviation for the data.