Quote: Dial indicators are used extensively on snap-gages, throughout the machining industry for tolerances down to at least .0001" It's much quicker and highly accurate. I've used them for years.
The real nice ones yes, but a standard indicator (like the one pictured) is only good down to .0005. The crappiest mics out there are good to .0001. I'm not seeing the logic, I guess it's just faster with a DI...