Knipex 4621A21 External Angled Retaining Ring Pliers 6.75-Inch For easy fitting of external circlips. For rings 19 - 60 mm in diameter. Tips are forged outward and are used for installing rings on the outside of a shaft or groove. Forged from chrome vanadium electric steel and designed to minimize tip breakage, and offer extended tool life. Plastic coated handles.