Knipex 4411J3SBA Internal Straight Retaining Ring Pliers 9-Inch For easy fitting of internal snap rings. For rings of 40 - 100 mm in diameter. Tips are forged inward to prevent retaining rings from slipping off and are used for installing & removing internal rings on the inside bore holes. Forged from chrome vanadium electric steel and designed to minimize tip breakage, and offer extended tool life. Plastic coated handles.