Universal Screwdriver Bits Anti-corrosion Strong Magnetic Ring

Features:
*Made of steel, good workmanship, high precision.
*The Screwdriver Bits Magnetic Ring can accurately lock screws, reduce abrasion to the the screw and the screwdriver head, extend service life span.
*Use it to magnetize the 6.35mm batch head.
*Impact resistant and hard, good wear resistance.
*Strong magnetism prevents the screws from falling out.