How to choose a micrometer for your tasks?
When buying a micrometer, first of all, you need to decide where and under what conditions you or your colleagues will use it. It is recommended to buy a high-quality tool, the cost of an error when measuring with a low-quality or inaccurate tool is sometimes very high, with the final receipt of the part made. It is also worth remembering that you are not buying a tool for one day and it is better to choose a quality tool from trusted brands. The tool must have an individual serial number and passport.
The micrometer is a precision tool for making very accurate measurements, today there are a lot of varieties of micrometers for various types of measurements, internal and external. The micrometer, although it was invented a very long time ago, did not change its appearance structurally, as in the early 18th century, it is still the same bracket with a moving heel. The only radical breakthrough in micrometers is the digital display of measurement results, which made it possible to significantly increase the division value to 0.001 mm.
In order to choose the right micrometer, first of all, it is worth deciding what measurements you will take and where. It must be clearly remembered that digital micrometers are not designed to operate at low temperatures. Micrometers according to world practice and the optimal result of obtaining measurements are divided into ranges from 0-25 mm or up to 1 inch. Further micrometers go in the range of 25-50, 50-75, 75-100, etc.
Below we consider the most popular micrometers.
The MK 25 micrometer is a legend and the flagship among micrometers, the very first micrometer with a vernier scale and a range of up to 25 mm was just that. MK25 is simple and reliable with a division value of 0.01 mm and an error of up to 0.002 mm. This micrometer can measure from 0 to 25 mm or 1 inch. Designed for a variety of measurements, metal, parts, plastic and plastic products, and other parts, tools and assemblies. The MK micrometer has a vernier scale for taking measurement results. . Usually the screw pitch is 0.5 or 1 mm and, accordingly, the scale on the stem has a division value of 0.5 or 1 mm, and 50 or 100 divisions are applied on the drum to obtain a reading of 0.01 mm.
Next come mechanical micrometers with different ranges up to 3 meters, the principle of their operation and the removal of the results of the reading is exactly the same as that of the MK25, the only difference is in the error and size of the bracket.
The next micrometer that has firmly gained popularity is the MCC 25 digital micrometer with a range of 0 to 25 mm but a division value of 0.001 mm and a possible error in some models from 0.001 mm to 0.004. An essential value when choosing a micrometer should be given to the error, if you plan to measure at low ranges up to 30 microns, then it is better to choose a digital micrometer with a minimum error. Modern digital micrometers have the ability to transfer data to a computer. Digital micrometers also have a range of up to 3000 meters in 25 mm increments, on longer ranges the increment can be 100 mm.
Two lined micrometers are the most popular and are used in almost every enterprise and in everyday life, because today it is difficult to do without measurements.
Micrometers of increased accuracy of the MKCP also belong to digital micrometers - with a division value of 0.001 mm and an error of 0.001 mm, such an error is provided by a microscrew of increased accuracy.
Next, we will consider highly specialized micrometers, which in essence have the same principle as a century ago, but can have different nozzles for more convenient measurement in hard-to-reach places.
A special micrometer for measuring the thickness of pipes, the pipe micrometer has a spherical tip on one side, which allows you to comfortably fit against the pipe wall or other spherical surface, the second part of the micrometer has a regular flat heel, pipe micrometers are both mechanical and digital with different ranges and graduations . The most running micrometer MT25 and MT 50 with ranges 0-25mm and 0-50mm
A smooth micrometer of increased accuracy MKPT is a mechanical micrometer that has an additional vernier scale and makes it possible to take more accurate measurements with a scale division of 0.001 mm Convenient and practical, often two times cheaper than a digital micrometer but with the same technical characteristics, the only negative is the lack of a digital display easier to take readings.
The sheet micrometer has large flat tips that are convenient for measuring sheets of metal or other large surfaces. Such large surfaces of the micrometer make it possible to significantly reduce the pressure on the measured surface.
MKU series
A micrometer that has in its kit 7 special removable nozzles that provide measurements with a micrometer in hard-to-reach places. 7 pair of interchangeable tips: flat, spherical, disk, knife-shaped, small flat, cone-shaped, wedge-shaped.
Convenient micrometer for continuous measurements of parts that do not have standard dimensions.
This micrometer is used to measure gears. Special round tips make it convenient to measure gears. This series of micrometers can be both with digital indication and mechanical
Based on the name, this micrometer is designed to measure wires and balls up to 10 mm
Designed to measure threads with a possible range from 0 to 200 mm. The set of micrometers includes prismatic and conical inserts, which are selected in accordance with the pitch of the measured thread. It is possible to measure both inch and metric threads
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