Mag-Ring to help Electronical Screw Driver, Air Driver and Hand-held Driver 4mm,5mm and 6.35mm are available for Bit diameter Small size Magnetic bits fit comfortably to any instruments.
Three super-strong magnetic is loaded in Magnetic and performed effectively.
Lifetime gaurantee on magnetic pull Productivity
Unnecessary Magnetic pull will be deleted from rubbing the groove on the edge of Magnetic Bits.