Combined magnetization and demagnetization, put the magnetic sleeve directly on the screwdriver shaft to increase magnetism, prevent the screw from falling off and increase work efficiency PROFESSIONAL UNIVERSAL MAGNET SOCKET POWERFUL: Slide the bar or bit driver back and forth against the side groove to remove magnetism. Small and easy to carry, the universal type can be picked up and used in various cutter bars. STRONG AND WEAR-RESISTANT MATERIAL: Constructed of high-performance ceramic with instant magnetization, the shell is made of high -quality ABS plastic, strong and wear-resistant. EASY TO CARRY AND INSTALL: The universal magnetic ring drill is small in size, easy to carry and store, easy to use and offers good performance. The magnet ring screw holder is easy to carry, and the universal type can be picked up and used in various tool shanks WIDELY USED: The magnetic sleeve of the powerful screwdriver bit with magnet ring is for handles with a maximum diameter of less than about 6.35 mm/0.3 inch are suitable for screwdrivers or knives. The removable magnet ring with screw drill can be used for many purposes such as