How to use tape measure correctly?
1. Before measurement, check whether the certificate label of the steel tape is clear. Confirm whether the tape is within the validity period. The use of tape measures that are not within the validity period or whose identification is not clear is prohibited.
2. The starting end of the workpiece to be measured should be free of burrs to ensure the accuracy of the measurement.
3. There should be no rust and obvious spots or scratches on the surface of the ruler, and the lines should be very clear.
4. Check all parts of the tape measure. When pulling out and retracting the tape measure, it should be light, flexible and free from jamming; when braking, the button device of the tape measure should be able to effectively control the tape rewinding, and there should be no blocking failure.
5. The tape can only be rolled up and cannot be folded; when using the tape measure, do not pull out the tape measure too hard, but slowly pull it out, and let it return slowly after use; when you brake the tape measure, you should first press the system Press the button, and then slowly pull out the tape, press the brake button after use, the tape will automatically rewind; when the tape is automatically reeled, prevent the tape from hurting people.