Review on MASTERCOOL 98234 Socket by Adam Roman

Job done. old valve out, new valve in minutes. The metal of the valve is a bit soft so it tends to warp a bit in the socket so you may have to use some channel locks or something to knock the valve out of the socket after removing/tightening it. . I used a combination of channel locks with tape wrapped around the teeth (to protect the bushing) and pliers or an adjustable wrench on the valve part. If you do this, the outlet should run indefinitely. For those wondering why these AC fittings/sockets have an 8 sided design instead of the typical 6 sided design, you only have to read some of these DIY reviews to find out why. The developers of this thing wanted to discourage inexperienced people from using public tools to mess with these potentially dangerous components in their cars.