Step Master,Steel,20um to 300um
Order #: 516-199
Mfg #: 516-199
- Step master is a master gage used for the z-axis (vertical direction) calibration of optical instruments. •Each adjacent step is measured down to 0.01µm by using a interferometer within ±0.20µm allowance.
- Step value between blocks 300,100,50,,20µm