Measuring tools, types and applications!

How many measurement tools do you know? We know that there are different types of tools to perform the measurement. In this article the World of Electrical presents eight types of hand tools for measuring. Some are well known to professionals, others less so, but all are very useful. So, come on.

The measurement is a comparison of two elements, one of which will serve as a basis or standard. A measuring tape is a standard that we use to compare with other elements. Measuring is important, as from measurement we can standardize parts and products.


The first tool is the square, this tool has two functions. One is to measure the size, as the square has a graduated ruler on its body. The other function is to measure two angles, being possible to measure the angle of 90º and the angle of 45º.

Square, measure size or angle.

The square can have several sizes, the most common is the 30cm square, but it is found in other sizes. This tool is widely used by electricians to assemble boards and structures.

Measuring tape

The second tool is perhaps the best known of all is the measuring tape. The measuring tape serves to check and compare measurements of parts or areas, it also serves to measure distances. The measuring tape is basically a metallic tape measure that is wrapped around a box that is the body of the measuring tape

Measuring tape, used to check and compare measurements.

Laser tape measure

The third tool is a variation of the measuring tape, which is the laser measuring tape. The function of the laser measuring tape is the same as the measuring tape, however it uses a different technology to make the measurement. The laser measuring tape makes the measurement electronically and this brings a lot of precision to the measuring tape.

Laser measuring tape, a variation of the measuring tape with different technology.

Some laser measuring models add measures to facilitate the work of measuring areas, for example.


The fourth tool is the caliper, it is an accurate measuring tool for parts. The simplest calipers are accurate to tenths of a millimeter, others are accurate to hundredths of a millimeter or even more.

Caliper, precision measuring tool for parts.

Graduated ruler

The fifth tool is the graduated ruler, the same one you use or used in school, a ruler is also a measuring tool. The rulers can be small with 30CM or much larger as it is 1m long. Rulers are used both for making measurements and for drawing traces.

Graduated ruler is also a measuring tool.

Combined square

The sixth tool is the combined square, this tool is a variation of the common square. The square is combined because its graduated ruler can be removed from the square itself, and can be combined with other tools such as the angle gauge and the center plotter.

Combined square, a variation of the common square.

In addition to measuring the size of pieces, the combined square can be used to measure angles in pieces, level a surface and trace the center of circles and squares.

Angle gauge

The seventh tool is the angle gauge, as its name says this tool measures the angle of inclination of a part. Some models have a magnet to be attached to metal parts and facilitate the measurement of the angle.

Angle gauge, measures the angle of inclination of a part.


Our eighth and final tool is the level, many people can say that the level doesn’t measure anything because it doesn’t show any numbers, but what the level does is match a surface leaving it at 180º to 90º or 45º. As we know how to measure it is to standardize and when we leave a surface with a correct angle, be it 180º, 90º or 45º, what we are doing is standardizing.

Level does is to match a surface leaving it at 180º to 90º or 45º.

A good professional must be prepared to perform different measurements, another measurement widely used in electrical and electrical quantities such as electrical current, electrical voltage, power, etc. And to make these measurements you need to know how to use the multimeter, below we have a video of the World of Electrical channel, showing how to use the multimeter.

If you have any questions or curiosity about the subject, leave it in the comments and we will answer it!