You have a 14x44 mtal lathe. A mill. Nothing fancy. Someone tells you to turn a 1" brass bar EXACTLY 2 feet 2 inches long +- .001".

I just bought a 29" Starrett vernier.

I believe, that without this most simple, if expensive, tool, there is no cheaper way to fabricate a metal bar EXACTLY 2 feet 2 inches long.

Its food for thought.

The maximum length bar you can fabricate to an EXACT length is determined, most cost effectively, solely by the biggest vernier caliper you have.

i.e., for those of us who own an 8" dial caliper and a 6" micrometer at biggest, cannot create a metal bar of 9.700 inches +-.001"