Originally Posted by
Grand Bois
It doesn't matter. The valves stick. Unscrew it and press down to unstick it.
I always use a compressor, but I use this. An angled chuck would have been better, but it works.
Is that a presta attachment, if so, where did you get it. Also, the verdict is in. I filed down the adaptor and it works like a charm. I guess I got a little bit too happy with the grinder and I filed the 1st one down too far. But it works enough to get 120 psi in the tire.