Features: Brand new and high quality 10pcs Allen Wrench Drill Bit: 10pcs drill bit can meet your different needs. Shank: 1/4 inch hex shank Industrial Grade Material: These hex bit made of alloy steel with a special heat treatments process, increased torques and unmatch hardness. The black phosphate treatments on the surfaces of the drill bit can effectively prevent it from being corroded and rusted. High Precisions:Adopting precisions processing technology to ensure the accuracy of the product. The drill bit can withstand the impact of large torques pneumatic tools, greatly improving the service life. Magnetic: Strengthened magnetic impact hex bit set helps you suck the screw easily and quickly. The magnetic force will not decay after multiple uses, which can improve your work efficiency! Allen Wrench Drill Bit Set: The 1/4 inch hex shank makes it much easier to fit into power tool, especially for quick change chuck. Fit for electric screwdriver, hand screwdriver, electric drills and air drills. Widely used in home repairs, automobiles, and other screw driving applications. Specifications: Material:S2 Steel Bit: H1.5mm/H2mm/H2.5mm H3mm/H3.5mm/H4mm H5mm/H6mm/H7mm/H8mm Length:Approx.50mm/1.96inch Shank Dia:Approx.6.35mm Package Includes: 10Pcs Drill Bit note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.