Where to match: our metal magnetizer screw rings are suitable for 1 / 4 inch in shank electric screwdriver bits, can compatible with,, slotted and other screwdriver bits, easy and for you to use Package: in this package, you will receive 5 pieces screw rings, which are practical tools for you to use in your daily life, the sufficient quantity will meet your various work needs and replacement and proper size: these bit magnetizer rings are aluminum alloy, which are, and you can use for a long time; The rings measure 1 inch / 25 mm in length, 0.59 inch / 15 mm in outer diameter, and 1 / 4 inch / 6.35 mm in inner diameter Functional tool for you: this screw can catch the screw easily and quickly, and fix it to the drill bit from slipping and improve the work efficiency; Just insert the screwdriver bit into the, the screw can be easily picked up Multiple usage: the screw rings are suitable for many applications, can help you to deal with many work problems, be applied to hinge installation, fixed pendant, furniture assembly, vehicle repair and so on, to make your work more, Manufacturer: Mekalero