I can't argue against any of the comments made so far. However, if I want my certs back all signed off, I have only one real recourse. Debate the case using reason...ie evidence that what has been used is fit for purpose if different from what the feo wants, or provide exactly what is asked for which takes the same effort to fit if a little more costly. I chose the easier option. If someone wants the firearms given the unlikely scenario they know about them, the aldi cordless grinder doesn't care what diameter the bolts use are.