Break Man

[RichardJ]

The Pressure Differential Warning Switch, Piston centering tool is a tool I have never owned or even given any thought about doing so.
If I ever push the piston to one side and the lamp turns ON, I simply crack a bleeder on the other side and push the switch piston back with the brake pedal.

I would suggest not using the plastic version of that tool.

I was watching that RoadKill Garage with David Freiburger and Steve Dulcich.
Hay, I have to get my laughs somewhere.
They were attempting to bleed the brakes on one of their junk mobiles and snapped the nipple off of a plastic version of that tool. They were able to get it out without too much trouble. Kids!!!