Using the Klein Tools 646-1/4M nut driver is a breeze. Simply place the magnetic tip on the nut or bolt you want to turn. The hollow shaft allows it to fit over long bolts and studs. For those hard - to - reach nuts in stacked circuit boards, this tool is your best friend. When using, hold the Cushion - Grip handle firmly to get more torque and comfort. The color - coded end of the handle helps you quickly pick the right tool. As for maintenance, keep the tool clean. Wipe it with a dry cloth after each use. Store it in a dry place to prevent rust. And since it's not insulated, don't use it in live electrical circuits to avoid danger.
