• One of the differences between cheap and expensive digital calipers is the speed at which you can move the jaws and still get reliable results. I have one of the Aldi ones as well as a very old digimatic whose display is going having been subject to some very strong magnetic fields. The measurements compare very well between them, in the region of a couple of hundredths of a millimetre which is in the region of operator "feel".

  • Yes but not glacially slow. The cheaper ones can sometimes either fail to read correctly or give errors if moved very quickly.

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