Such an instrument could be called the Laser Scan Micrometer.
2MM is equivalent to 0.2CM. The main difference between the two is their size, with 2CM being 10 times larger than 2MM.
2mm
The LSM-500S Mechanical Engineers measure parts of machinery to an accuracy of 0.025mm or 0.001inch for most of the parts they manufacture and sometimes more accurate than that. The instrument that is used most commonly is called a Micrometer (not to be confused with the 'unit' called a micro-meter. ) They also use an instrument called a Vernier Gauge. Since about 1975 instrument makers have been making what are called "Dial Vernier Gauges" which are easier to use and red, than traditional Vernier Gauges. A Micrometer is more accurate, and good quality Micrometers measure to an accuracy of , 1 ten thousandth of an inch (0.0001 inch) or 1 hundredth of a millimetre.(0.01mm) The diameter of rotating parts in machinery are usually made to an accuracy of 1hundredth of a millimetre.
2mm 2mm
2mm in case length.
2mm 2mm
6mm is thicker than 2mm. It has a greater thickness of 4mm.
2mm 735 m en mm
A standard push pin is approximately 2mm in size.
2 is smaller than 3, so 2mm is smaller than 3mm.
It is 7 mm - 2 mm = 5 mm.
A small seed, like a poppy or sesame seed, is approximately 2mm in size.