High-leverage design, rivet is closer to the cutting edge for 36% greater cutting power than other plier designs. Short jaws and beveled cutting edges permit close cutting of wire. Induction-hardened cutting knives for long life. Hot-riveted joint ensures smooth action and no handle wobble. Plastic-dipped handles for comfort and ease of identification. Custom, US-made tool steel Sku 608.5039 (D228-8) features a heavier design for all-purpose use plus a tapered nose for easy working in confined areas. Sku 599.8737 (D248-9ST) is designed for soft annealed rebar tie wire.