I have a workbench space set up in my garage and am often dabbling in one project or another. Often the need arises to measure something down to the tenth of a millimeter or so. Decided to give this Neiko caliper a try and very happy I did. Measuring items in my lab at the university with much more expensive equipment yields the exact same answer as the Neiko. For the money, this is a great little caliper which is easy to turn on and off and easy to set from metric to English units. It also uses a very popular watch battery size that is easy to find at Target or Walmart. I suspect I will have this for years to come. Very happy customer! Five stars.