Open the jaws of the diagonal cutting pliers by moving the handles apart. The pliers may have a spring that does this for you or you may have to pull them apart yourself.
Step 2 – Place object between jaws
As a general rule the object you wish to cut should be placed as far down the blades as possible, close to the joint.
Some tools have been designed to cut soft objects (copper and plastics) near the tip of the jaws, see the technical specification for more information on your diagonal cutting pliers.
Step 3 – Squeeze handles together
With the wire firmly in place, squeeze the handles together (you should only need one hand for this). The blades will push through the wire and cut it in two.
Step 4 – Troubleshooting
If you find you are struggling to cut the wire, check for damage on the blade which could prevent a clean cut and then try moving the wire closer to the joint. If that fails, it is likely you need a stronger pair of diagonal cutting pliers for the job.