prEN ISO 5059-1

This document provides the most important design and metrological characteristics of two-point inside micrometers for internal measurement:
— with a scale interval of 0,001 mm and 0,01 mm;
— with analogue or digital indication.
It applies to two-point inside micrometers with and without interchangeable rods.
This document does not apply to micrometers fitted with a dial gauge, or to jaw micrometers.
Three-point inside micrometers are excluded from this document and are covered by the part 2 of this document.