The knipex 03 06 traditional range of combination pliers are made from a top quality special tool steel forged and oil hardened to approximately 60 hrc for added strength and durability and come in three sizes 614 inch 7 inch and 8 inch the cutting edges are ideal for hard and soft wire they are oil hardened and tempered and then separately induction hardened these knipex 03 06 combination pliers have chrome plated heads for smooth operation and handles with heavy duty insulation for a softer