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View Full Version : Bought a cheap Chinese Digital Micrometer, here's a bit of a review -



Jim Ferrous
25th Oct 2020, 02:35 PM
Bought a cheap Chinese Digital Micrometer, here's a bit of a review -


https://youtu.be/b24BcDwg4z4

pipeclay
25th Oct 2020, 06:11 PM
Used for measuring inside tube.

LexD
25th Oct 2020, 06:34 PM
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.

Jim Ferrous
26th Oct 2020, 09:53 AM
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.

Mk1_Oz
26th Oct 2020, 01:02 PM
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.