Knipex 9K 00 80 20 US Retaining Ring Pliers Sets; Set Type: Internal Ring Pliers; External Ring Pliers ; Minimum Ring Bore Diameter: 0.47; 0.75 ; Maximum Ring Bore Diameter: 1in; 2.36in ; Minimum Shaft Diameter: 0.39in; 0.75in ; Maximum Shaft Diamete