If you're interested in precision machining, Robrenz is a good channel to check out: https://www.youtube.com/user/ROBRENZ/videos https://www.youtube.com/user/R

If you're interested in precision machining, Robrenz is a good channel to check out: https://www.youtube.com/user/ROBRENZ/videos https://www.youtube.com/user/ROBRENZ/videos He demos a Brown & Sharpe electronic indicator here, showing how sensitive they are, even to errant breaths: https://youtu.be/UG6LV8v8W-0?t=25m15s https://youtu.be/UG6LV8v8W-0?t=25m15s