This is probably the best electronic digital caliper available at a reasonable price.
Precision 6" (150mm) caliper features an extra-large LCD digital readout for exact internal and outside measurements accurate to .001-Inch. Instantly converts from SAE or Metric, the display can be zeroed at any point on the slide. Machine-grooved thumb-roll mechanism and position lock for sure adjustment. Hardened stainless steel shaft with depth-measurement probe, machined ground jaws. On-off switch with auto-off, two long-life batteries included (one spare).
Includes custom fit protective case and instruction manual.
Click Image to Enlarge
Part # - 11116211301407
Measure it Right...The First Time!