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    Inside Micrometer, 2-300mm, 0.004mm

    Good quality three-jaw microneter with low price. 200g weight, 2-300mm large measuring range, 0.004mm high precision. Three-point internal micrometer can accurately measure the size of blind holes and through holes. Extension rod equipped inside the micrometer can measure the size of deep holes.
    SKU: T-IMM
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    Old price: $320.99
    $238.46
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    2-300mm mechanical three hole micrometer with good price. High precision of 0.004mm can accurately measure the inner diameter of the measured object. When there is an error in the micrometer measurement, you can use a calibration ring gauge, a small wrench and a screwdriver for calibration.

    Specification

    Model T-IMM
    Range 2-300mm
    Resolution 0.001/0.005μm
    Material steel
    Accuracy 0.004mm
    Net Weight 200g

    Parameters Table

         Micrometer size chart 1
    Product Code Measuring Range Precision Calibration Ring Gauge L
    01 2-2.5mm 0.004mm Φ2.5mm 12.5mm
    02 2.5-3mm 0.004mm Φ2.5mm 12.5mm
     03 3-4mm 0.004mm Φ4mm 22.5mm
     04 4-5mm 0.004mm Φ5mm 22.5mm
     05 5-6mm 0.004mm Φ6mm 22.5mm

    Continued Table 1

           Micrometer size chart 2
    Product Code Measuring Range Precision Calibration Ring Gauge L1 A Extension Rod
    Chrome plated on the outer surface                                                                                                                                                 
     01 6-8mm 0.004mm Φ6mm 54.5mm 1.5mm 100mm
     02 8-10mm 0.004mm Φ8mm 54.5mm 1.5mm 100mm
     03 10-12mm 0.004mm Φ10mm 54.5mm 1.5mm 100mm
     04 12-16mm 0.004mm Φ16mm 80mm 0.5mm 150mm
     05 16-20mm 0.004mm Φ16mm 80mm 0.5mm 150mm
     06 20-25mm 0.004mm Φ25mm 90mm 0.5mm 150mm
     07 25-30mm 0.004mm Φ25mm 90mm 0.5mm 150mm
     08 30-40mm 0.004mm Φ40mm 97mm 0.5mm 150mm
     09 40-50mm 0.005mm Φ40mm 97mm 0.5mm 150mm
    External surface painting     
     10 50-63mm 0.005mm Φ62mm 114mm 0.5mm 150mm
     11 62-45mm 0.005mm Φ62mm 114mm 0.5mm 150mm
     12 75-88mm 0.005mm Φ87mm 114mm 0.5mm 150mm
     13 87-100mm 0.005mm Φ87mm 114mm 0.5mm 150mm

    Continued Table 2

    The dimensions of three jaw internal micrometer 
    Product Code Measuring Range Precision Calibration Ring Gauge L1 Extension Rod
    Anodized outer surface External surface painting  
     14-08 15-08 30-40mm 0.004mm Φ40mm 97mm 150mm
     14-09 15-09 40-50mm 0.005mm Φ40mm 97mm 150mm
     14-10 15-10 50-63mm 0.005mm Φ62mm 114mm 150mm
     14-11  15-11 62-75mm 0.005mm Φ62mm 114mm 150mm
     14-12  15-12 75-88mm 0.005mm Φ87mm 114mm 150mm
     14-13  15-13 87-100mm 0.005mm Φ87mm 114mm 150mm
     14-14  15-14 100-125mm 0.005mm Φ112.5mm 145mm 150mm
     14-15  15-15 125-150mm 0.005mm Φ137.5mm 145mm 150mm
     14-16  15-16 150-175mm 0.005mm Φ162.5mm 145mm 150mm
     14-17  15-17 175-200mm 0.005mm Φ187.5mm 145mm 150mm
     14-18  15-18 200-225mm 0.007mm Φ212.5mm 145mm 150mm
     14-19  15-19 225-250mm 0.007mm Φ237.5mm 145mm 150mm
     14-20  15-20 250-275mm 0.007mm Φ262.5mm 145mm 150mm
     14-21  15-21 275-300mm 0.007mm Φ287.5mm 145mm 150mm

    Feature

    1. Three-jaw inner diameter micrometer has a hard alloy surface and a ratchet wheel for force measurement.
    2. Inner diameter micrometer adopts a three-point design, which can accurately measure the inner diameter.
    3. Aluminum packaging box can protect the micrometer from damage.
    4. The three-point internal micrometer is made of steel, which is sturdy and durable, and can be used for a long time.

    Tips: Precautions for the use of micrometers

    When measuring, pay attention to stop using the knob when the micrometer screw is approaching the object to be measured, and use the fine-tuning knob instead to avoid excessive pressure. It can not only make the measurement result accurate, but also protect the spiral micrometer.

    When reading, pay attention to whether the half-millimeter engraved line on the fixed scale has been exposed.

    When reading, there is an estimated number in the thousandth, which can not be thrown away casually. Even if the zero point of the fixed scale is exactly aligned with a certain scale line of the movable scale, the thousandth should also be read as "0".

    When the small anvil and the micrometer screw are close together, the zero point of the movable scale does not coincide with the zero point of the fixed scale, and there will be a zero error, which should be corrected, and the zero error value should be removed from the final length measurement reading.

     

    Existing reviews
    Arkaprabha 12/30/2020 12:57 AM
    Very good quality internal micrometer
    The inner diameter micrometer purchased by the school has very accurate measurement results. It has a calibration ring gauge, a wrench and a screwdriver to facilitate our calibration. It is packaged in an aluminum packaging box to protect the micrometer from damage.
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