outside micrometer set, DIN 863. 0-100mm

For accurate outside measurement of small objects. Comes with 4 individual outside micrometers of 0-25, 25-50, 50-75 and 75-100mm. Complete with 3 'Standard' gauges of 25, 50 and 75mm length. These gauges are used to check and set the micrometers for correct measuring. The Standard gauge lengths are fixed and manufactured, like the micrometers, according to DIN 863.