Using your Klein Tools 507-12 adjustable wrench is easy. First, open the jaws of the wrench by turning the knurl until it's wide enough to fit the nut or bolt you're working on. Then, place the jaws around the fastener and tighten the knurl to secure it. When you turn the wrench, make sure you're applying force in the right direction to avoid slippage. As for maintenance, keep it clean after each use. Wipe off any dirt or debris with a dry cloth. Since it has a high - polish chrome finish, avoid using abrasive cleaners as they can scratch the surface. Store it in a dry place to prevent rust. If you notice any issues with the operation, like the jaws not closing properly, check for any debris in the mechanism and clean it out. This wrench is built to last, but proper care will ensure it serves you well for a long time.
