Using your Klein D201 - 7CSTA ironworker's pliers is a breeze. To cut the soft annealed rebar tie wire, just place the wire between the jaws and squeeze the handles. The spring - loaded design will automatically open the pliers after each cut. When you need to twist the wire, use the aggressive teeth on the pliers to get a good grip and start twisting. As for the hook - bend in the handle, it gives you extra control when you're working. For maintenance, keep the pliers clean and dry. After use, wipe them down with a dry cloth. You can also apply a little bit of lubricant to the pivot point to keep the action smooth. And remember, these pliers are designed for soft annealed rebar tie wire, so don't try to use them on other types of tough materials. This will help keep your pliers in good condition and ensure they last a long time.