PLIERS FOR DELICATE WORK NO FURTHER A MYSTERY

You simply need to put the wire in between the jaws and close. The round jaw will press the wire into your concave leading to a good 50 percent circle loop. Concave pliers are also excellent for wire wrapping  jewellery craft.Some pliers have springs (one or double) to help keep them apart any time you launch your grip. Some haven't any spring in