have a pair that are ok, I was looking for a pair that has a track with teeth in the slide. But I am not sure what feature to look for.
As far as I know all dial/digital calipers have the track/teeth on them. Thats how they work. Get a dial caliper, no batteries to go dead. A 6" will be the most available. They do come in 4" and 8", 12". 6" is the prevalent
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