Klein Pliers are made up of finest U S Steel alloy. They are forged precision machined hardened and carefully tempered for maximum strength. Klein Pliers provide exceptional performance and durability. High-leverage design Rivet is closer to the cutting edge for 36 greater cutting power than other plier designs. Custom US-made tool steel. Induction hardened cutting knives for long life. Hot-riveted joint ensures smooth action and no handle wobble. Short jaws and beveled cutting edges permit close cutting of wire. Plastic-dipped handles for comfort and ease of identification.