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Calipers for measuring outer diameter, inner diameter, length, and depth; Distance measuring apparatus; Instruments for measuring length; Laboratory equipment and supplies, namely, calipers; Length measuring gauges; Micrometer gauges; Micrometers; Microscopes, including stereomicroscopes; Slide calipers; Surface roughness testing machines and instruments; Testing equipment for measuring the temperature, pressure, position or form of workpieces in a machine tool; Tire tread depth gauges; Tool measuring instruments ire tread depth gauges; Tool measuring instruments