This is certainly a precision-tooled magnetic bit, and it will be properly used with Item 74131 Mini 4WD (+) Screw & Nut Driver Set PRO to tighten up 2mm limit screws easily.
• Hex bit size: 1.5x20mm
• to be used with 2mm cap screws (1.5mm hex opening).
• Insert it into the screwdriver hold.
• utilize nut driver to put on 2mm nuts.
• Shank has laser printing which shows bit size.
• Comes with protective pipe.