Mitutoyo 516-107 Series 516 Micrometer Inspection Steel Gage Block Set, Metric, Grade 1, 10 Blocks per Set

Either set of gauge blocks can be used for measurement of outside micrometer errors, measurement surface flatness, and parallelism. Dedicated gauge block sets for micrometer inspection. Set 516-107 is recommended for checking instrumental errors in micrometers due to the choice of block sizes ensuring that the instrument is checked through a full rotation of the spindle over the range 0-25 mm (or 0-1").