How Important is a Micron When Grinding Tools?
WEBMar 30, 2023 · A micron (μm) is a unit of length equivalent to onemillionth of a meter. For comparison: a single human hair has a diameter of 80 μm and a bacterium is about 3 μm in size. A micron could be described as "impossibly small". But machine operators achieve the impossible every day and produce tools and parts with a tolerance of only one or ...