E-27EMitutoyo reserves the right to change any or all aspects of any product specication, including prices, designs and service content, without notice.• The Step Master is a gage providing 4 small increments in height (steps) constructed from an assembly of 5 highly accurate steel or ceramic blocks.• Each step is dened as the difference in height between the center of adjacent blocks, measured to a resolution of 0.01 μm by using an interferometer with an accuracy tolerance of ±0.20 μm.• Steel and ceramic types are available to suit the application.• Height differences are measured between the centers of adjacent steps. Step Master SERIES 516Ceramic type516-499Steel type516-199 DIMENSIONSUnit: mm○○○-○○○-24: Provided with Calibration CerticateGauge BlocksLength Standards Brought to You by MitutoyoSPECIFICATIONSSteel typeOrder No. 516-198516-199Block No.1234512345Cumulative step (μm)0101517180300400450470Step value between adjacent blocks (μm)105213001005020Ceramic typeOrder No. 516-498516-499Block No.1234512345Cumulative step (μm)0101517180300400450470Step value between adjacent blocks (μm)105213001005020Adjacent stepMagnied view of stepBlock No.4515267300123451005020µm77776(Max. height)Step value between adjacent blocks No. 1 - 2 No. 2 - 3 No. 3 - 4 No. 4 - 5516-198, 516-498 10µm 5µm 2µm 1µm516-199, 516-499 300µm 100µm 50µm 20µm12345 R0.2 or lessAn inspection certicate is supplied as standard. Refer to page E-4 for details.

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