Knipex 49 series precision circlip pliers knipex 49 31 a0 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 these pliers have an opening limiter which avoids overstr