explain about screw gauge
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Micrometer screw gauge is defined as an instrument that is used for measuring the diameter of thin wires, the thickness of small sheets such as glass or plastics. It is used for the precise measurement of very small objects. A micrometer can measure the depth, length and thickness of whatever object fits between its anvil and spindle. It is commonly used in mechanical engineering and machining applications.A micrometer works on the principle of a screw and a nut. It allows you an axial rotation of the barrel-like structure, also known as Thimble, which is used to measure the distance of the object. The screw of a micrometer is attached to the thimble, which is a concentrated cylinder, attached to the micrometer.
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