Universal 21mm Removable Magnetizer Ring Magnetic Steel Screwdriver Bit Selling point: 100% new high quality. Made of steel, good workmanship, high precision. Anti-impact and hard, great wear resistant. Use it to magnetize the 6.35mm batch head. Strong magnetism prevents the screw from falling off. Product: Material: Metal Hardness: HRC60 Size: 21 * 12 mm Magnetism: Strong magnetism Explosion-proof: No Insulation: No Screw head: General purpose System: Metric Note: Dear buyer: Due to lighting effects, display brightness, manual measurements, etc., the color and size between the photo and the actual item may vary slightly. Sincerely hope that you can understand! Thank you! Include: 1 X Magnetizer Ring screwdriver set screwdriver screwdriver bit set screwdriver organizer screwdriver set electric screwdriver kit screwdriver head magnetic ring screwdriver bits screwdriver set with case screwdriver holder screwdriver electric screwdriver bit set magnetic screwdriver bit set screwdriver bit set for impact driver screwdriver bit sets for cordless drill screwdriver bit set with handle screwdriver bit set long screwdriver bit set 2 screwdriver bit set impact ready screwdriver bit set pink screwdriver bit set for drill screwdriver bit set screwdriver bit set for electronics screwdriver kit screwdriver kit set screwdriver kit for electronics screwdriver kit with case screwdriver kit for home screwdriver kit magnetic electric screwdriver kit screwdriver kit pink screwdriver kit for women screwdriver kit small screwdriver kit for glasses screwdriver kit electric screwdriver organizer for tool box drawer screwdriver organizer magnetic screwdriver organizer wall mount screwdriver organizer bag screwdriver organizer box screwdriver organizer for toolbox screwdriver organizer for tool bag screwdriver organizer pegboard screwdriver organizer case screwdriver organizer for toolbox drawer screwdriver set kit screwdriver set magnetic tip screwdriver set for glasses screwdriver set with organizer screwdriver set for building screwdriver set heavy duty screwdriver set small size screwdriver set screwdriver set screwdriver set craftsman screwdriver set screwdriver set small screwdriver set screwdriver set electrician screwdriver set electric screwdriver set electric screwdriver set electrical insulated screwdriver set electrician screwdriver set electric with case screwdriver set electric small mini screwdriver set electric screwdriver set electric for screwdriver set electric screwdriver set electric screwdriver set electric screwdriver set electric screwdriver set electric purple screwdriver head