Following the path of a cheap and cheerful ‘how to do it’ format of the last two columns, I continue with something easy – or is it?
Nothing could be simpler than calibrating the lowly plain plug gage – at least at first glance. You only have one thing to deal with, an outside diameter that is easy to get at with a variety of measuring instruments. However, before you grab your trusty digital micrometer to do the job, there are a few things to consider.