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    16-20 mm (0.62" - 0.78") 3 Point Inside Micrometer

    5 out of 5 based on 1 reviews | Write a review
    $236.31
    Low price 3 point inside micrometer for sale online. It is used for measuring the inner dimension of the hole diameter, groove, etc. 16~20 mm (0.62" to 0.78") internal micrometer provides a 150 mm extension rod to measure the size of deep holes easily and conveniently. Durable and stable bearing steel materials, clear scale, accurate reading.
    SKU: ATO-IM-1620
    30-day Returns
    Free Shipping
    Delivery date: 6-12 days

    Get a high-quality inside micrometer at low cost. 16~20 mm (0.62" to 0.78") range, 150 mm extension rod, suitable for precision measurement of blind and through holes. 3 point internal micrometer features durable and stable bearing steel materials and a clear scale for an accurate reading, mainly used to measure inside dimensions like the inside diameter of a hole or tube.

    Features

    • Inside micrometer is suitable for the precision measurement of blind holes and through holes.
    • 3 point inside micrometer is equipped with a 150 mm extension rod, which can measure the size of deep holes easily and conveniently.
    • Clear graduations laser-etched on a satin chrome finish for easy reading. Highly durable because of carbide-tipped measuring surfaces. Spindle hardened ground and lapped for ultimate accuracy.
    • 16~20 mm internal micrometer built-in force limiter ensures accurate and repeatable readings.

    Specifications

    • Model: ATO-SHAN-1620
    • Range: 16~20 mm
    • Types: 3 Point Inside Micrometer
    • Material: Bearing Steel
    • Measurement Type: Internal Diameter Measurement
    • Resolution: 0.005 mm
    • Extension Rod Length: 150 mm
    • Scale Process: Laser Scale
    • Accuracy: 0.004/0.005 mm
    • Package: Plastic Box

    Details

    Inside micrometer details

    Applications

    The inside micrometer is an instrument for the accurate linear measurement of the diameter, thickness, length and other dimensions of solids. 3 point internal micrometer is mainly used to measure internal dimensions such as the internal diameter of a hole or a tube and is widely used in mechanical engineering, machining and most mechanical industries.

    Inside micrometer applications

    Tips: Functions of 3 Point Inside Micrometer

    • The 3 point inside micrometer has good durability and impact resistance, and can directly measure the inner diameter from the bottom of the hole.
    • It can be measured close to the bottom of the blind hole.
    • 3 point internal micrometer is equipped with an extension rod for measuring depth, suitable for models with a measuring range of 6 mm or more.
    Existing reviews of 16-20 mm (0.62" - 0.78") 3 Point Inside Micrometer
    Excellent precision
    I’ve been using this 16–20 mm three-point inside micrometer for precision hole measurements, and it has been very reliable so far. The readings are clear and easy to interpret, and the three-point contact design gives stable, repeatable results without wobble. The included 150 mm extension rod is especially useful—I can measure deeper holes comfortably without compromising accuracy. The bearing steel construction feels solid and durable, and after multiple uses, the calibration still holds perfectly.
    From: Kai | Date: 25/11/2025
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