Calipers and gauges

  • This Hi-Tech Diamond 20mm 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, bezels and mounts.
  • 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.
  • This Hi-Tech Diamond 6" 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.
  • This Hi-Tech Diamond 6" fractional digital caliper is accurate to +/-.01mm, measures inside and outside diameters, and can be quickly toggled between inches, fractions, and millimeters. Calipers make precise measurements of beads, gems, cabochons, bezels and mounts.
  • This Hi-Tech Diamond 10mm dial gauge (also known as a "pearl gauge") is accurate to +/-.1mm, features zero adjustment and has a broad pin that prevents damage. Dial gauges are handy, compact and precision engineered for accurate measurements of pearls, beads and other small stones.
  • This Hi-Tech Diamond 20mm dial gauge (also known as a "pearl gauge") is accurate to +/-.1mm, features zero adjustment and has a broad pin that prevents damage. Dial gauges are handy, compact and precision engineered for accurate measurements of pearls, beads and other small stones.