Before using the micrometer, clean white paper should be used to remove dust and dirt (use the micrometer to measure the contact surface and screw surface to stick the white paper and then pull out naturally, repeat2-3Then twist the knob, when the measuring contact surface is in quick contact with the screw surface, switch to fine tuning, and adjust the zero after the two sides are completely in contact, you can measure.
    When the micrometer measures the hardware, mobilize the knob and quickly contact the workpiece, use the fine-tuning knob to rotate, stop when you hear the click, click, click three sounds, and read the data from the display or scale.
    When measuring plastic products, the measuring contact surface and the screw gently contact the product.

    When the micrometer measures the diameter of the shaft, at least two or more directions are measured and the micrometer in the maximum measurement is measured in sections. The two contact surfaces should be kept clean at any time to reduce the measurement error.

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    If you are Digital display gas momentum meter Interested or want to know more details, please click on our online customer service for consultation, or directly call the national unified service hotline 400-682-7787. We look forward to hearing from you!