Doug Lester
Well-Known Member
One thing that you have to consider is the precision of your calibration blocks. If they are supposed to be ±1.0 then you are a little out of calibration. If they are ± 2.0 then you still are within tolerance. Even if you are outside of tolerance with your control blocks I don't think that it would account for your tester reading the blade that far out. If you have tested out toward the edge of the blade and have gotten the same results I would have to lean towards someone mixing the steel up with some structural stuff. Being that you can't look at a bar of steel and tell what it is I'm surprised that this doesn't happen more often.
Doug
Doug