Quite possibly the cheapest micrometer money can buy !
Metric - 0 to 25mm ( analog )
Operation is a little on the rough side ( not the smoothest in operation ) …
I did some cleaning and oiling and the micrometer is a lot smoother now .
For the princely sum of $8.76 ( Ozzi bananas ) I just did not know what to expect .
Since I recently acquired a 25mm gauge ( 24.995mm ) , I did a quick check to see how bad the accuracy might be …
I figure if its going to be out , it will most likely show at the end of the measuring spectrum … ( The further from 0 the greater the error ? )
My Mitutoyo digital micrometer say’s 24.995 mm and the cheap as a McDona;ds take away order Micrometer say’s …… 25.005mm …
That is + 0.01mm @ 25mm against the Mitutoyo …
The Mitutoyo set me back a weeks wages several decades ago , and the Cheap as Maca’s Chinese Micrometer was $8.76 Ozzi … ( $6.62 USD )
The Cheap as chips micrometer was very repeatable ( got the same measurement time and time again )
The only problem is the lack of smoothness …
The one thing a micrometer has to be besides accurate is smooth ( to get repeatable measurements ) …
And that is where these fail some what …
If you are an experienced hand at using Micrometers , then it may not be an issue for you …
But if you are not really adept at picking up on problems with measuring , then this particular sample might be problematic …
The 0.01mm variance against the Mitutoyo @ 25mm is neither here nor there … It is an acceptable variance for the tools tolerance .
If you need a certified Micrometer , you would not be buying the cheapest micrometer money can buy ? ( Would you ? )
But for the hobbyist , these are probably accurate enough … ( Just depends on those nasty variables )
And if you have never owned a decent measuring tool , then these might be good to learn with … ( Who can’t afford $6.62 USD )
I certainly did not buy these to replace my Mitutoyo , but I was very interested in seeing what you got for your maca’s money !