Hi folks,
I want to buy a non-electronic caliper, but the variety out there is dizzying and I could use a little help.
What are the advantages of a dial caliper as compared to one with a vernier scale? Disadvantages?
Vernier-scale calipers come in lots of styles--some appear to have a roller-knob to move the jaws. I've used that style, and it seems ok.
Others have two lock-knobs with what looks like a separate fine-adjustment knob. What's that for, how is it used?
Still others look to lock the jaws with a squeeze-lever instead of a threaded knob. How well does that work?
Any other points I'm missing? Thanks in advance for your help.
--John