I like the dial calipers but as with any tool buy quality and you'll never go wrong. Get a set of gage blocks to periodically check the accuracy unless you work in a shop that recalibrates them for you. You can send them to a company that does calibration if you wish also. The biggest difference between the two is that one uses an embedded tape to transfer data to the digital readout and the dial ones have a rack and pinion that mechanically drives the dial. The most common problems I see are that the electric ones sometimes lose the battery cover and the dial ones get dirty and sometimes jump the gears and need to be reset.
Last edited by rgrundy; July 5, 2012 at 10:03 AM.