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  1. #1
    Join Date
    Sep 2006
    Location
    South Coast of New South Wales Australia
    Posts
    296

    Default Bought a cheap Chinese Digital Micrometer, here's a bit of a review -

    Bought a cheap Chinese Digital Micrometer, here's a bit of a review -

    Cheers Jim
    My Youtube Channel -
    Blue Heeler's Model & Toy Steam Engine Room

  2. #2
    Join Date
    Jun 2007
    Location
    sydney ( st marys )
    Age
    64
    Posts
    4,887

    Default

    Used for measuring inside tube.

  3. #3
    Join Date
    Sep 2008
    Location
    Riddells Creek, Vic.
    Posts
    831

    Default

    The S shaped tool is used to turn the battery compartment cover I think. The ball anvil can be used to measure the wall thickness of tube etc.

  4. #4
    Join Date
    Sep 2006
    Location
    South Coast of New South Wales Australia
    Posts
    296

    Default

    Quote Originally Posted by Techo1 View Post
    The S shaped tool is used to turn the battery compartment cover I think. The ball anvil can be used to measure the wall thickness of tube etc.
    That had me stumped, I was thinking it was going to be for something much more complicated than that. Why'd they'd even include it is a mystery.
    Cheers Jim
    My Youtube Channel -
    Blue Heeler's Model & Toy Steam Engine Room

  5. #5
    Join Date
    Apr 2019
    Location
    Adelaide
    Posts
    589

    Default

    Given that any standard is only correct at a given temperature, how much could that 25mm standard grow or shrink depending on the temperature? Is it something that needs to be taken into account? A quick online calculator just showed 10 degree C change making a 0.004mm change to 25mm so I think I answered my own question!

    What were the analogue micrometers reading on that same standard?

    All up it looks to be a great bit of kit and worth buying. Maybe do another review after using it for a bit.

    Nice one.

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