Review on 💨 High Low Pressure Tool for Removing and Installing R12A Air Conditioning Valve Cores by Jeremy Bradford

This works well but requires some work. I had to allow a small amount of gas to escape through the threads so the gas could be used to fire the valve out the outside of the tool. Simply unscrew the schrader valve, remove the key, close the valve, vent the take-off side, and quickly open the valve again for the schrader to fire on the outer section. Then close the valve and remove the shredder. Try again if this didn't work. Installation was very easy.