This magnetic screw ring can catch the screw easily and quickly and fix it to prevent it from falling off the screwdriver and improve work efficiency. Just insert the screwdriver into the magnetic ring. This bit magnetizer is made of aluminum alloy, which is durable material, and you can use them for a long time; The magnetic 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. Where it fits: our Magnetic Screw Holders are suitable for 1/4 inch in shank electric screwdriver bits, can be compatible with hex, torx, slotted and other screwdriver bits, easy and convenient for you to use Multiple usage areas: the magnetic screw rings are suitable for many applications, can help you deal with many work problems, applied to hinge installation, fixed hanging, furniture assembly, vehicle repair and so on, to make your work more convenient This magnetic screw ring can catch the screw easily and quickly and fix it to prevent it from falling off the screwdriver and improve work efficiency. Just insert the screwdriver into the magnetic ring. This bit magnetization is made of aluminum alloy, which is durable material, and you can use them for a long time; The magnetic rings measure 1 inch/25mm in length, 0.59 inch/15mm in outer diameter and 1/4 inch/6.35mm in inner diameter. Where it fits: our Magnetic Screw Holders are suitable for 1/4 inch in shank electric screwdriver bits, can be compatible with hex, torx, slotted and other screwdriver bits, easy and convenient for you to use Multiple usage areas: the magnetic screw rings are suitable for many applications, can help you deal with many work problems, applied to hinge installation, fixed hanging, furniture assembly, vehicle repair and so on, to make your work more convenient