Traditional Culture Encyclopedia - Almanac inquiry - What do you think of tape measure?
What do you think of tape measure?
1. First, after we get the tape measure, the length of the tape measure will be marked on its side. The total length of tape measure is 3.5m, 5m, 7m and10m. We should choose the tape measure with the corresponding length according to our own needs.
2. Secondly, after the tape measure is pulled out, the length will be marked on the front of the tape measure, usually in centimeters. The length from long line to long line is 1cm, and each short vertical line is, mm per 10cm. The scale value will be marked in red, so as to facilitate our accurate reading during measurement.
Why does the hook in front of the tape measure move?
You may have noticed that the hook at the end of the tape measure is actually movable, which may make you feel uncomfortable, or you think it is a design problem, but please don't try to tighten the hook, because the hook moves for a reason.
The short distance that the hook can move is related to the overall accuracy. The thickness of the hook itself is exactly1.5mm, but the actual moving range of the hook is exactly1.5mm.. In this way, whether you hit it with a hook or head, you can ensure the accuracy of the measurement.
When measured from the outside edge, the hook will be pulled out, so the thickness of the hook will not be added to the total. When measured from the inner edge, the hook will press into the tape measure and increase the thickness of 1.5 mm, and keep accurate measurement.
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