Knipex External Snap Ring Pliers – 7 1/4″. KNIPEX 7 1/4″ External Snap Ring Pliers-Forged Tipsare designed for installing or removing circlips on shafts fitting snap rings ranging from 3/4″ to 2 23/64″. These pliers feature a solid forged style with non-slip straight solid tips that are forged as one part of the tool. The pliers body and tips are made from chrome vanadium steel which is forged and oil-hardened for durability.