Quote:
Originally Posted by sperry
Seriously... why bother with .1mm resolution if the instrument is only .2mm accurate.  |
An instrument can be repeatable within 0.1mm but only accurate to 0.2mm (or worse). When comparing 2 parts that have the same nominal dimension an instrument is more accurate/useful then if it has to measure something to an absolute accuracy of the same magnitude. In other words that caliper prolly can tell the difference between a part that is 25.0mm and one that is 25.1mm, but you cannot rely on it measuring something 150.0mm accurately within less than 0.2mm. Does that make sense?