Additional Info: Rockwell Hardness 58-60. Hardness meets A.N.S.I standards. V groove channel prevents slipping.CHANNEL LOCK GROOVE JOINT PLIERS 10" IVY CLASSICSKU: TOCL10-18142$14.74PriceQuantity*Add to CartProduct DescriptionIvy Classic Brand Drop-Forged tool steel, heat treated, cutting edges are induction hardened, Jaw Opening 1-1/8". Warning: Not insulated. Handles are NOT intended for proteciton against electric shock. Never use on or near live electrical circuits.