Magnetic ring screwdriver bits can accurately lock screws, reduce abrasion to the screw and screwdriver head, and extend service life. Ideal for carpentry, Placopltre, auto repair, furniture assembly, small jobs around the house, and more. The magnetic screw ring can easily and quickly grab the screw and fix it to prevent the drill bit from slipping, reduce abrasion to the screw and screwdriver, improving your work efficiency. 6.35mm screwdriver magnetic ring drill with fine workmanship, high efficiency, and long service life. The magnetic ring can easily and quickly grab the screw to fix, prevent the drill bit from slipping, reduce wear on the screw and screwdriver, and improve work efficiency. Perfect for carpentry, Placopltre, auto repair, furniture assembly, small jobs around the house, and more. The magnetic ring screwdriver bit can accurately lock the screw, reduce the wear of the screw and screwdriver bit, extend the service life and prevent the screw from falling off. Color: red, yellow, blue. Material: metal. Size: 21 x 15 mm/0.83 x 0.59 inches. Shipping quantity: 3 magnetic rings for screwdrivers.