Carbon Steel Round Nose Pliers, for Crafting and Repair, Jewelry Making Supplies, FerronickelSize:5.8cm wide,12.5cm longSo called âRound Nose Pliersâ means that the tong head is cone. The carbon content of its material is 0.45 percent and toughness and haedness is appropriate. It is used to bend sheet metal or metal wire into the roundness. It is one of essential tools for jewelry making.