1Small and easy to carry, universal type can be absorbed and used in various cutter bars. 2 Combined magnetization and demagnetization, put the magnetic sleeve directly on the screwdriver rod to increase the magnetism, prevent the screw from falling, and increase the working efficiency 3 Slide the screwdriver rod or bit back and forth against the side groove to remove the magnetism. 4 Builtand 8209 in powerful ceramics with instantaneous magnetization, the shell is made of highand 8209 quality ABS plastic, strong and wearand 8209 resistant. 5 Small size, easy to carry and store, convenient to use and with good performance Item Type: Bits Magnetizer Ring Material: Plastic Magnetic Sleeve Applicable: Screwdriver or bit with the maximum diameter of the shank less than approx. 6.35mm or 0.3in Color: Blue and black Size: Approx. 28 x 17mm or 1.1 x 0.7in 3 x Bits Magnetizer Ring