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The Mitutoyo 422 series Quickmike-type LCD blade micrometer has a blade anvil and spindle for measurement of groove diameter of shafts and keyways. It also has a ratchet-stop mechanism for uniform adjustment, an LCD digital readout that converts between inches and metric with resolution to 0.00005” (0.001mm) for outside diameter (OD) measurement, and a spindle that feeds at a rate of 0.4” (10mm) per revolution for productivity. The micrometer’s electronic microprocessor can hold measurements at any position, convert to absolute value, set a temporary zero position, and return to a true zero reading. The frame is made of high-grade tool steel. The unit comes with an SR44 battery and a fitted plastic case.
Micrometers are precision measuring instruments that use a calibrated screw to measure small distances. These measurements are translated into large rotations of the screw that are then able to be read from a scale or a dial. Micrometers are typically used in manufacturing, machining, and mechanical engineering. There are three types of micrometer: outside, inside, and depth. Outside micrometers may also be called micrometer calipers, and are used to measure the length, width, or outside diameter of an object. Inside micrometers are typically used to measure interior diameter, as in a hole. Depth micrometers measure the height, or depth, of any shape that has a step, groove, or slot.
Mitutoyo manufactures precision measuring tools, metrology equipment, and systems. The company was founded in Tokyo in 1934 and formed Mitutoyo America Corporation in 1963, which is headquartered in Aurora, IL.
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