I'm tired of breaking my expensive calipers so I trusted the good reviews of these calipers. They work pretty well. They're not as heavy as Mitutoyo, but I like them because I find them easier to handle when working with small sizes. I don't know the accuracy because I only have my trusty spring loaded calipers that I got from jewelry school, but I'm sure they are more accurate. I hope they still work a year later as I use them several times a day. At least they aren't too expensive to replace.