Mitutoyo 105-421 Outside Micrometer, Extension Anvil Collars, Ratchet Stop, 1600-1800mm Range, 0.01mm Graduation, +/-0.030mm Accuracy
- Bow-type micrometer for measurement of large outside dimensions
- Vernier scale in metric units for taking precise outside diameter (OD) measurements
- Extension anvil collar for adjustable zero-setting
- Ratchet-stop mechanism helps provide uniform pressure for precise, repeatable measurements
- Carbide facing on spindle and anvil provides wear resistance
The Mitutoyo 105 series outside micrometer has a bow shape for measurement of large outside dimensions, a vernier scale in metric units for taking precise outside diameter (OD) measurements, and an extension anvil collar for adjustable zero-setting. It also has a ratchet-stop mechanism that helps provide precise, repeatable measurements. The micrometer’s frame has a baked enamel finish for protection and durability. Models with a measurement range over 1000mm have a hollow, tubular steel frame that helps provide light weight with rigidity and balance, and include a workpiece stopper for positioning stability. The vernier scale on the thimble and sleeve is graduated to 0.01mm, with a satin chrome rust- and glare-resistant finish. 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 fitted wooden 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.