I figure that, if I’m trying to measure down to thousandths or tenths then it’s important that I be as accurate as possible. I’ve bought a few cheap measuring devices and have never been happy with them – I’ve had measuring calipers with markings that are hard to read, micrometers that lose their accuracy, and so on. I’ve always been happy with the “name” brands like Starret, Brown & Sharpe, Mitutoyo, and so on.
This stuff is always more expensive, but good used measuring devices are available on eBay, and we have several second-hand shops that deal in tools in the area. I’d rather have a used Starret dial indicator, for example, than a new no-name. I always check newly acquired measuring devices against my “trusted” ones to make sure they’re accurate (or maybe they’re all off by the same amount?). The good stuff takes a lot more abuse without failing and generally is more satisfying to use. Machinists will tell you that you can’t make anything more accurate than you can measure – maybe rebuilding a transmission or setting up a rear end isn’t “making” something, but I think the statement applies.
[ I don’t mean to sound “preachy”, this is just a hot button. Plus the weather’s lousy and I’m stuck inside. ]
Have a happy Thanksgiving, everybody.