4" digital caliper



This Hi-Tech Diamond 4″ digital caliper is accurate to +/-.01mm, measures inside and outside diameters, and can be quickly toggled between inches and millimeters. Calipers make precise measurements of beads, gems, cabochons, bezels and mounts.

Hi-Tech Diamond 4" digital calipers are professional quality, with hardened-steel jaws and prongs. Why does hardened-steel matter? Non-hardened jaws and prongs will eventually indent or become abraded resulting in measurement inaccuracies.  Slots are ground and polished, not merely milled out, for a smoother sliding motion. Each and every caliper goes through a 15-point accuracy test.


  • 0-4" range
  • +/-.01mm accuracy
  • Locking screw
  • Stainless steel frame
  • LCD display screen
  • Zero Function allows setting zero at any position, for making incremental measurements, as well as performing reverse and deviation measurement techniques
  • One-button change from inches to millimeters
  • Battery and case included
  • 30-day warranty

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