The tape measure is a very common tool in life, but we often find that many of its designs are difficult to understand when we use it. In fact, every seemingly strange design on the tape measure is not a chicken rib, but we don't understand their real use.
Here are 4 secrets to the tape measure that will surely make you rediscover how ingenious this popular tool is.
If you've ever looked closely at a tape measure, you'll remember that there's a hole in the hook of the tape measure.
So what is it for? The following picture will make you understand instantly~ That's right, it can be stuck on the nail like this, and then you don't need another hand, or another person to help you fix the tape measure.
The edge of the tape measure hook is not flat, but toothed.
Its usefulness is when you need to draw a line in the measurement place, and there is no pen in your hand, press it to the position where you need to draw the line and rub it a few times, you can draw a line to help you identify.
This position at the front of the tape measure can be moved, and the length of the first grid is generally shorter than the length of the second square, many people feel that the design of this activity will affect the accuracy of the tape measure, but in fact, the flexibility of the tape measure hook is a very important quality requirement for the tape measure.
In fact, if you use a tape measure to measure the outer diameter of an object, you need to pull the tape measure back so that the measurement result is accurate. If you measure the inside diameter of an object, the tape measure hook itself is thick, and you need to retract this movable distance. That's why the tape measure tip is designed to be flexible.
The last secret about the tape measure is the number on it, we often see the number on the tape measure, but we don't know what it is used for, for example, this tape measure is marked with the number 3, so what is it used for? In fact, it represents the length of the tape measure shell.
Suppose you measure the length of a window and you can't read the exact number around the corner, so the number on the tape measure can be of great use.
You need to place the tape measure on the same plane, with the casing of the tape stuck at the very bottom, and then read out the length on the tape measure, plus the length of the tape measure itself by 3 feet, and you get the exact length of this distance.
In those years, the design we thought was superfluous contained such a mystery, and the design of the tape measure was far more magical than we imagined, and these secrets we did not know for so many years are also magical.