




Using the Klein Tools 631M nut driver set is easy. First, pick the right size nut driver for your fastener. You can use the color - coded Tip - Ident system on the handle ends to quickly find the one you need. Then, place the magnetic tip on the nut or bolt. The magnetic tip will hold the nut or bolt in place, making it easier to work. For long bolts or studs, the full hollow shafts (except for the 3/16 - Inch one) can slide right over them. When using the nut drivers, hold the cushion grip handles. They're designed to give you more torque and make your work more comfortable. As for maintenance, after each use, wipe the nut drivers clean with a dry cloth. Store them in a dry place to prevent rust. Avoid using these non - insulated nut drivers in electrical applications where insulation is required. Also, don't apply excessive force that could damage the internal flanges or the shafts.