Eleanor08 wrote:Caliper is only good to + or - .003, maybe .002..
Heck you can squeeze .002 out of one easily..
If you are really worried you can get a surface plate, a test indicator, and a set of gage blocks.
But lets be real, a hair off your head will measure .002/.003 anyways..
Best thing you can do is keep your tools clean. And be careful with the blades on your caliper, they do wear!
I do have a surface plate etc.... I just wanted to make sure the calipers were "in the ball park"
Many years ago I deveolped and ran the dimensional inspection department for the jet engine shop I worked for in Miami. I still have a few different gauges just wish I still had my Vernier Height gauge. I lost it it 2009 when my house burned down. It, and a several other inspection tools were lost, and I most likely will never be able to replace them. Not that I need them any longer. I'm just a sucker for nice tooling