3Pcs Screwdriver Extension Bits Quick Relse 1/4 Hex Shank Holder Drill Bit Magnetic

Interface has a locking mechanism, built-have magnetic, automatically up batch hd. Extend all kinds of screwdriver bits, screwdriver hd conversion uses. Fast fastening, grtly improve work efficiency. For use in hand-held drivers or power drills, this 1/4 inch female by 1/4 inch male magnetic bit holder. The 3pcs screwdriver extension bits are built-have magnetic, for use in hand-held drivers or power drills, to extend all kinds of screwdriver bits. Ftures: Interface has a locking mechanism, built-have magnetic, automatically up batch hd.         Extend all kinds of screwdriver bits, screwdriver hd conversion uses. Fast fastening, grtly improve work efficiency.              For use in hand-held drivers or power drills, this 1/4 inch female by 1/4 inch male magnetic bit holder.             Helpful to remove or tighten a large number of screws after you've or loosened them.         Suitable for drill, screwdriver, batch hd and other to transfer. Has a hardened and tempered steel shaft with a quick-relse chuck. Specifications: Material: Steel              Color: Black              Hex Shank: 6.35mm( 1/4" )              Fir for: 1/4" shank dirver bit Package Weight: 118g / 4.16ounces Package Size: 170 * 50 * 10mm / 6.69 * 1.97 * 0.39in Packing List: 3 * Screwdriver Extension Bits