iGaging 0-1" Digital Electronic Micrometer w/Large Display Inch/Metric

Great micrometer at a very reasonable price. Case could be a bit better, ball adapter keeps falling out of space, extra battery does not fit in case so well. Seems very accurate when checking against some gage blocks.

When 3D printing, the quality of the results are strongly affected by the diameter of the filament, and adjusting for the actual diameter is an important part of the process. Understanding the amount of shrinkage that is expected as the part cools is also critical when designing and printing parts that require a precision fit. Many 3D printing enthusiasts use calipers to make these measurements, but I have had better luck getting repeatable results with this micrometer. It seems to be well constructed and reliable, and still fits a hobbiest's budget. I consider this tool to be essential, especially when trying to get the most from decent filament that doesn't match the nominal size quite as well as the good stuff.

Not too bad. It's not super accurate, as I can get different readings when tightening the micrometer to zero it out (has a little variance, but not much). Seriously, for the price, you can't go wrong unless you truly need accuracy to 5 digits. With an accuracy rating of +/- 0.00016 I found this to be perfect for readings at 0.00 Easy to use, easy to change modes. Don't forget, if you use the ball attachment or other spacer, you still need to zero it before using and you really should zero each time you use it to be sure measurement is good.

I bought this to measure the thickness of some paper. It did that perfectly, but what I didn't expect was how often I would use it after that. I've measured things like wire thickness (helps to know what size heat shrink to get), sheet metal (for writing a manual), components (for figuring out how long or thick screws need to be), and lots of other stuff. Basically, it is *vastly* more useful than I expected it to be. As for the accuracy, I'm completely satisfied. Yes, sometimes when I close it it says 0.001 mm (or 0.0001 inches) instead of 0.000, but I don't need more accuracy than that. To give you an idea how close that is, a piece of paper I just pulled out of my printer is 0.105 mm. If you need more accuracy than that you're going to have to expect to spend a lot more money on a more accurate instrument. Given the price I simply can't fault this tool. The UI isn't great, but it's quite usable. Switching between mm and in requires holding down a button for a bit longer than it should, as does setting the zero, but it's not a big deal. And the fact that it *has* the ability to switch between the two at all is a huge win, IMHO. All in all it's easy to use, more than accurate enough (at least for me), and inexpensive. Good tool, great value.

I have bought several inexpensive micrometers, but they always go bad and I end up throwing them away. This one is obviously in a different class.