The new IP65-rated micrometer from Mitutoyo America is dust, chip and coolant proof. According to the company?s press release, the IP (Ingress Protection) rating means its housing is sealed in dust-tight enclosures and has passed a test where waterjets projected against the enclosure from all directions had no harmful effects. In addition, it can be used anywhere on the production floor with accuracy of +/-0.0005"/+/- 1ųm instrument error.