johnnydoom It didnโt come with a wrench, but I found out itโs just a T-20 Torx Drive.
I have had three adjustable brands of clubs but all of the various wrenchs fit, but not sure if they are all set to the same torque value. The club wrenches are like torque wrenchs. When you get to the right value the tool makes a snapping sound. You can find them cheap on ebay as well as some additional shaft adapters. Here is a tip on how best to hold the club when removing the screw. I put the head in my left hand with palm vertical and shaft pointing parallel to the ground away from me with the head pointing down. It allows a good grip on the head and tool. A bud of mine put his driver grip down on the ground and tried to push down with the tool to get it tight. The head slipped, flexed the shaft and broke it.