For use on sealing rings with internal diameter 4 - 16 mm, example injector nozzle sealing rings on Mercedes CDI engines. The puller extracts the sealing rings correctly, for example: from between the injector nozzle and the cylinder head.
To pull out the sealing ring, screw the taper point of the tool into it, then remove with the impact-type puller.
Capacity: 4 to 16mm.