3 Pcs Hex Drill Bits Magnetic Screwdriver Holder 1/4 Inch Extension 60mm/100mm/150mm

3 sizes 60mm, 100mm, 150mm. The magnetic bit holder has a 1/4 inch hex socket and is designed for all common cordless screwdrivers, screws and drills. Carbon steel bracket for durability, high performance construction allows for long service life. The insert holders have a magnet for quick connection or disconnection and ensure they stay in place while driving.