Mitutoyo 510-131 Dial Indicating Micrometer, Ratchet Stop, 0-1" Range, 0.00005" Graduation, +/-0.00004" Accuracy, Retractable Anvil Button

The Mitutoyo 510 series dial indicating micrometer has a vernier scale in inch units for taking precise outside diameter (OD) measurements, a dial gage for Go/No-Go (GO/NG) tolerance inspection, a ratchet-stop mechanism for uniform pressure during adjustment, and carbide faces for wear resistance.

The vernier scale on the thimble and sleeve is graduated to 0.0001”, with a satin chrome rust- and glare-resistant finish. The dial indicator gage is graduated to 0.00005”, and has an Ingress Protection 54 (IP54) rating, which means that components are resistant to debris and to splashing water from any direction up to a volume of 10 liters per minute. The anvil retracts for quick workpiece insertion or release. The spindle and anvil have flat measuring faces and are carbide-tipped for wear resistance. A spindle lock helps provide secure locking of the measurement position. The micrometer comes with a plastic case for storage.

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.