Features:100% brand new and high quality.Anti slip hex shank electric screwdriver bit.can be used for 1/4 electric， hand screwdriver， drill screwdriver and other tools.Anti slip， high snap and high hardness， durable， magnetic.Specifications:Material: S2Wrapping color: colorful(Random delivery)Shank type: hex shankShank diameter: 1/4"(6.35mm) Full length 001 25mm 002 50mm 003 70mm 004 90mm 005 100mm 006 127mmPackage Included:6pc Anti Slip Hex Shank Screwdriver Bit