I just received a new angle plate and want to check its accuracy. There was no sheet included and it looks cheap. I don't have another angle plate but do have a fairly well set up shop.
List of tools available (please include all suggestions as I might have missed a tool or two).
Surface plate 2 X 2ft and 6in X 6 in
Height gages
dial indicators galore
precision squares
rotary table
sine bars and related equipment
surface grinder
mill
lathe
etc. etc.

Any ideas?
Thanks in advance.
Yoda