Review on Lichamp Automotive R1234YF Installer Standard by David Merculief

I was hoping for an inexpensive and easy to use reliable tool kit to replace the AC valve core. This corresponds to only low costs. When I opened the box I understood why there were so many complaints about valve cores not coming out with the tool. The valve end of the tool did not fit the valves at all, very loose. However, I was hoping that following the "vacuum lubrication" instructions would work. I had to try 5 times but ended up removing my JRA valve from the bottom sideline and installing a new one. While not very good, it served its purpose and I decided to keep this tool for myself. until I noticed two bearings falling out of the clutch. This renders the tool useless as it will not hold onto the AC fitting evenly. I have a Master Cool tool for small valves like Schrader and it has a tip that snaps onto the valve stem and holds it securely. The tip is a separate piece attached to the stem so it can wiggle a bit to get to the valve. I think I'll have to save up on this JRA kit instead.