I am guessing that is correct as well, but that is one of my big issues, nobody knows, or those that know don't tell. I can accept the machine may be off and that the wood will shrink or expand. But I don't think it's right for the machine to report .063 if it is capable of cutting .0625. It actually matters less in the final product than it does in the design - it gets confusing adding decimals rounded off to a digit(s) less than the machine is capable of cutting.