I needed the tool to adjust the clearance on my master cylinder pin, but the soonest I could get one was a week out. So, having a 3D printer, I chose to make my own. The pin is just a 4" length of 1/4 rod I had laying around. I ground one end into a dome shape. I also happened to have an 8-32 thumb screw in my junk drawer, it's only installed in the last picture. STL file attached, in case you happen to have your own printer.