AirWard developed this unit to remove and install Intake and Exhaust Valves without having to remove the engine Cylinder.
The Grabber slides a 1/6" cable through an Spark Plug hole and snares the Valve and after tightening the cable around the Valve Stem - just slide the Valve into the Cylinder. After reaming the Valve Guide, simply slide the Valve back into the Valve Guide, release the cable, and reassemble.
Works on any aircraft engine.
Manufactured by AirWard.