Measuring tools and measuring instruments, namely, comparators

MEASURING TOOLS-NAMELY, SNAP GAUGES, THREAD GAUGES AND MICROMETERS; AND MEASURING INSTRUMENTS-NAMELY, INDICATOR GAUGES FOR EXTERNAL MEASUREMENTS, INDICATOR GAUGES FOR INTERNAL MEASUREMENTS, INSPECTION GAUGES, INSIDE DIAMETER CHECKING INSTRUMENTS, WIDTH MEASURING INSTRUMENTS, CONCENTRICITY MEASURING AND CHECKING INSTRUMENTS, RIDER INSTRUMENTS FOR CHECKING OUT-OF-ROUNDNESS AND DIAMETERS OF CYLINDRICAL PARTS DEPTH GAUGES, MICRO HARDNESS TESTING INSTRUMENTS, SURFACE FORM TESTING INSTRUMENTS, SURF...