DeFelsko STDZSTL Zero Plates Small Disk, Diameter: 38 mm (1.5"), Steel, for use with the PosiTector 6000 F, FS, FRS, FN, FNS, FNRS, FXS, FNDS, F microprobes and PosiTest DFT Ferrous Combo

The DeFelsko STDZSTL Zero Plates Small Disk, Diameter: 38 mm (1.5"), Steel, for use with the PosiTector 6000 F, FS, FRS, FN, FNS, FNRS, FXS, FNDS, F microprobes and PosiTest DFT Ferrous Combo is used to provide a substrate where none exists. Large sheets of material such as paper, plastic, fabric and rubber can be measured with a coating thickness gage by placing the material over the zero plate. This is useful when the measured item is too large to access with a micrometer or other device. For example the screen printing industry uses zero plates to measure the thickness of the "substrate" being printed.