Just insert the screwdriver bit into the rings, the screw can be easily collected These screw rings can magnetize screwdriver, drill, easily and quickly capture the screw and fix it, reduce abrasion and improve work efficiency These screwdriver rings can be applied for hinge installation, furniture assembly, vehicle repair, etc. This makes your work more Screwdriver bit magnetizers are selected from strong, lightweight and portable ones, which can be applied for a long time Magnetizers are suitable for 1/4 inch electric screwdriver bits, also can be suitable for slotted screwdriver bits and other screwdriver bits, Manufacturer: Mllepjdh