Feature:1. Specification: Including 10pcs imperial bits, 5/64in, 3/32in, 7/64in, 1/8in, 9/64in, 5/32in, 3/16in, 7/32in, 1/4in, 5/16in, and 10pcs metric bits, 1.5mm, 2.0mm, 2.5mm, 3.0mm, 3.5mm, 4.0mm, 5.0mm, 6.0mm, 7.0mm, 8.0mm.2. 1/4 Inch Hex Shank: These drill bits have a standard 1/4 inch hex shank and are suitable for electric screwdrivers, manual screwdrivers, electric drills, general tools, and any standard drill bit.3. S2 Alloy Steel: These screwdriver bits are made of excellent S2 alloy steel material, with CNC processing and hardening, making it has high strength, no breaking, and excellent durability.4. Magnetic Design: Magnetic drill bits can help you easily pick up screws, prevent parts from falling off, suitable for fine machining situations, and the magnet will not decay after multiple uses.5. Application Area: This hex drill bit kit is an excellent tool for furniture assembly, garage, automobile, bike, pipeline, construction, and other maintenance work, which has strong practicality.Specification:Item Type: Hex Bit SetShank: 1/4in Hex ShankSpecification: Metric: 1.5mm, 2.0mm, 2.5mm, 3.0mm, 3.5mm, 4.0mm, 5.0mm, 6.0mm, 7.0mm, 8.0mmImperial: 5/64in, 3/32in, 7/64in, 1/8in, 9/64in, 5/32in, 3/16in, 7/32in, 1/4in, 5/16in.Package List:20 x Screwdriver Bits2 x Storage Bars