General description Universal 1/4-inch quick hex shank and 1/4-inch hex socket fit most electric drivers, hand-held drivers, and bits. This compact and portable screwdriver bits holder is easy to carry around, making it a practical extension bar drill screw adapter with a quick release carabiner keychain. Technical specifications Material: Metal Measurement allowed error: +/- 1-3 cm Compatibility and accessories Fits most electric drivers, hand-held drivers, and bits Package Contents: 5x Screwdriver Bits Holder Other information Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the real thing.