UPM Digital Caliper

The professional-grade hardened stainless steel digital caliper featuring 0.01mm high-resolution liquid crystal readouts and versatile 4-way measurement modes for precision watchmaking, jewelry, and component inspection. Determining precise dimensions on small jewelry mountings, complex watch link clearances, and micro-machined industrial parts requires unyielding, distortion-free metrology hardware. The UPM Digital Caliper delivers exceptional structural baseline accuracy. Outfitted with an ergonomic thumb-roller fine adjustment module, this metric/imperial dual-format instrument allows bench technicians and laboratory engineers to secure immediate, parallax-free tracking over shifting micro-parameters.

Advantages

• Premium Hardened Stainless Steel Body: The beam and measuring jaws are precision-ground from vacuum-tempered, hardened tool-grade stainless steel, ensuring resistance against friction wear and maintaining precise long-term parallel jaw alignment.

• 0.01mm High-Resolution LCD Interface: Outfitted with an instant response, high-contrast liquid crystal display tracking down to 0.01mm (or 0.0005"), completely removing the parallax visual mistakes common with analog vernier scales.

• Integrated 4-Way Comprehensive Quantifying Modes: Precision machined references provide flexible tactical tracking setups across four structural orientations:

  1. External Measuring Jaws: For verifying outside diameters, block widths, wire thicknesses, and gemstone tables.

  2. Internal Measuring Knives: Designed to cross-check precision bores, tube inside diameters, slot tolerances, and ring shanks.

  3. Slender Depth Rod: Slides vertically out from the beam tail to index the internal depth of blind holes, bores, and watch case recesses.

  4. Step Alignment Face: The stepped rear face of the slider block allows for vertical offset measurements along parallel shoulders or raised component tiers.

• Instant Metric / Imperial Unit Conversion: A dedicated toggle selector transforms readings fluidly between standard millimeters and decimal inches without requiring manual calculation formulas.

• Ergonomic Thumb adjustment Slider Roller: Outfitted with a knurled fine-adjustment screw wheel and slider lock, ensuring progressive contact pressure against fragile workpieces to avoid deflection errors.