The Mitutoyo 147 series can seam micrometer has a vernier scale in metric units and a ratchet-stop mechanism that helps provde uniform pressure for taking measurements of the width, height and depth of can seams. The micrometer is made of high-grade tool steel for durability, with a satin chrome rust- and glare-resistant finish. The vernier scale on the thimble and sleeve is graduated to 0.01mm. The spindle and anvils are made of hardened steel for durability. The unit comes with a fitted carton 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.