Front calipers not releasing

Thats not the intended purpose of that tool and will not wok for bleeding brakes as far as I am concerned. It's use is to lock the brakes while measuring caster. Works for checking brake lights too. Brake bleeding? Nope
oh, it works ok, but it is much. much easier to just grab a friend, or relative, even a kid to work the brake pedal. I've never tried a mity vac, so I don't know how easy that is to use.