Knipex 49 series precision circlip pliers knipex 49 21 a11 knipex precision circlip pliers offer you precision with durability when working with circlips the tips are 30 more stable than conventional pliers while still allowing good accessibility during assembly the tips on the precision circlip pliers are non detachable and the large supporting surfaces and the position of the tips make it more difficult for the rings to bounce off knipex 49 21 a11 precision circlip pliers bent 10 25mm