A Vernier caliper is a graduated sliding clamp usually ... The micrometer scale on the shaft of the gauge. A micrometer is a G clamp with jaws in its most common form around 25 mm in size, and ...

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Here’s how to be as exacting as an engineer in anything you build. Vernier calipers embody a clever trick invented by Pierre Vernier. Lacking the precise and delicate mechanism of a dial caliper ...