Mitutoyo 7220 Dial Depth Gauge, Indicator Type, 0-200mm Range, 0.01mm Graduation, +/-0.015mm Accuracy, 10mm Stroke, 100mm x 18mm Base

The Mitutoyo Series 7200 Dial Depth Gauges, Indicator Type, Metric, depending on the model, have a measurement range of 0 to up to 210mm; a stroke (or travel distance of the indicator) of 5mm, 10mm, or 30mm; a resolution (or smallest graduation interval) of 0.01mm; with up to + or – 0.015mm of accuracy. The dial gauge interface provides precise and easily readable measurements. All units except model 7210 include extension measuring rods for flexibility. Models 7210 and 7222 have a carbide-tipped ball point for precise measurements. The bases of the units are available in both elongated and rounded designs. The bottom of the bases are hardened, ground, and lapped for durability and accuracy. Depth gauges are typically used in manufacturing, machining, and mechanical engineering.

Depth gauges are precision measuring instruments used to determine the depth of any shape that has a step, groove, or slot. These gauges often take the form of sliders that travel on a measuring beam or rods, are moved to position by hand, and then adjusted with a calibrated screw. The base of the gauge rests at the top of the shape whose recession is to be measured, while the beam or rods extend to the bottom of the recession to determine the measurement. Gauge position is read from a graduated scale, dial, counters, or an electronic display.

Mitutoyo manufactures precision measuring tools, metrology equipment, and related systems. The company, founded in Tokyo in 1934, formed Mitutoyo America Corporation in 1963 with headquarters in Aurora, IL.