First of all, after we get the tape measure, there will be the length of the tape measure on the side of the tape measure. As shown by the arrow, the total length of this tape measure is 3.5 meters. We should choose the tape measure with the corresponding length according to our own application scope.
Secondly, the head of the tape measure is L-shaped, which is convenient for us to carry it on the edge of the object and then pull it back to measure the length.
Thirdly, there will be a length mark on the tape measure. From long line to long line, it is 1cm, and each short vertical line is 1mm, which is the number of millimeters. Every 10cm, the scale value will be marked in red, so that we can read it accurately when measuring.
Fourth, there is a button in the middle of the tape measure. If you slide down, the tape measure will be too tight to pull and close. When we finish measuring, gently press this button and the tape measure will automatically retract, which is very convenient.
Brief introduction of tape measure:
Tape measure is a common measuring tool in daily life. What we often see is a steel tape measure, which is often used in construction and decoration, and is also one of the necessary tools for families. Divided into fiber tape measure, tape measure, waist measure and so on. Lu Banchi, Feng Shui ruler and secretary also belong to steel tape measure.
The tape measure can be rolled up because it has a spring. When measuring the length, the length of the ruler and the spring is actually lengthened. Once the measurement is completed, the spring in the tape measure will automatically shrink, and the ruler will also shrink under the action of the spring force, so the tape measure will be rolled up.
Reference to the above content: Baidu Encyclopedia-Tape Measure