The 00 20 11 assembly pack pliers set has the most commonly used pliers the set contains these knipex kpx0302180 are traditional 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 variations a 6 14 inch 7 and 8 inch the cutting edges are ideal for hard and soft wire these are also oil hardened and tempered and then separately induction hardened the knipex kpx0302180 combination plie