Originally Posted by dkf
The resoloution on all mine are .0005" however a 6" is really only accurate to +-.001" at best. Some companies even make electronic calipers that can be switched to different measurements, like fractional.
My $15 Harbor Freight digital is .0005 resolution - 3 full digits to the right of the decimal point and
a small sub-5 digit and can be switched between inches and millimeters.