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Stainless steel dial caliper with satin chrome finish, large clear dial, in fitted box

WUQ

WUQ 0-4" Precision Dial Caliper 0.001" Resolution P920-S214

SKU CH-HMCQ-SFKT8

A 0-4 inch dial caliper with 0.001 inch resolution for inside, outside and depth measurements

  • TypeTool and Appliance Tester
  • 0-4" range covers common workshop tasks
  • 001" resolution enables fine adjustments
  • Hardened stainless steel resists wear and corrosion
  • Large clear dial gives direct 0.100" per revolution reading
  • Clamp allows repeatable settings for batch work

Precision Dial Caliper 0-4 Inch

This precision dial caliper measures inside, outside and depth dimensions from zero to four inches with a resolution of .001 inch. The large clear dial provides direct reading to .001 inch and completes one revolution every .100 inch. It is suited for machinists, toolmakers and quality inspectors who need repeatable hand-held measurements.

Accuracy limits of a mechanical dial

Accuracy is stated as .001 inch over the full four-inch range. The mechanical rack-and-pinion drive can accumulate error if the covered rack becomes contaminated or if the instrument is dropped. Thermal expansion of the stainless steel body may also affect readings in environments with large temperature swings.

Installation and common issues

The caliper arrives in a fitted deluxe case and requires no assembly beyond removing protective coatings. Users should verify zero on a clean reference surface before each session. The most frequent problems are debris on the measuring faces, a loose bezel lock that shifts the zero point, and failure to engage the clamp when repeating a setting.

Highlights

  • 0-4" range covers common workshop tasks
  • 001" resolution enables fine adjustments
  • Hardened stainless steel resists wear and corrosion
  • Large clear dial gives direct 0.100" per revolution reading
  • Clamp allows repeatable settings for batch work

Specifications

TypeTool and Appliance Tester

Questions about this item

Should I choose the 0-4 inch range with 0.001 inch resolution for general workshop use?

Yes, the 0-4 inch range with 0.001 inch resolution covers common machining and inspection tasks while the hardened stainless steel construction withstands daily use.

What does the 0.001 inch accuracy per 4 inches mean when I am measuring a part?

It means any measurement taken within the full 4 inch range will be within 0.001 inch of the true dimension, so a 3 inch reading is accurate to ±0.001 inch.

How does the dial’s 0.100 inch single revolution and covered rack affect repeatability?

Each full dial turn equals 0.100 inch, letting you count revolutions quickly, while the covered rack keeps debris out so the zero return stays consistent.

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