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Features: These quick release hex bits are suitable for screwdriver, electric screwdriver, drill, manual screwdriver and screwdriver head conversion, can be applied for DIY, home maintenance and so on. This magnet tool bit holder is designed with built in magnetic suction, easy automatic ejection of head, to ensure fast and release. It can hold the bit firmly in place, ensuring that your bit stays in place. Specifications: Material: steel Color: black Size: as shown in pictures Package includes: 5 x Screw bit holders Notes: Manual measurement, please allow slight errors on size. The color may exist slight difference due to different screen displays. Please note that only the bottom of the hole is magnetic, handle is not.