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Stainless steel vernier caliper 722 with dual-scale slide rule and locking thumb roller

General Tools & Instruments

General Tools & Instruments 722 Vernier Caliper Gauge

SKU CH-E4X3-JWK6H MPN 722

A 5-inch vernier caliper measuring inside, outside and depth with 1/128" resolution

  • Selling UnitCard
  • TypeCaliper
  • Features* Vernier caliper * Performs inside, outside and full length
  • Perform inside, outside and depth measurements with one tool
  • Read fractional increments in 1/16" and 1mm steps on the slide bar
  • Lock the frame to hold repeat measurements securely
  • Advance the slide smoothly using the thumb roller
  • Graduated in 16ths and 32nds with vernier reading to 1/128

What this tool is

The General 722 is a fractional-scale vernier caliper built for mechanics, machinists and hobbyists who need reliable hand-held measurements. It handles inside, outside and full-length depth readings in a single compact gauge.

5-inch capacity and 1/128" vernier resolution

The slide bar carries 1/16" and 1mm primary graduations while the vernier scale resolves to 1/128". That combination decides whether the tool meets the precision your work demands.

Friction roller and slide lock for repeatable setups

A thumb roller advances the slide smoothly and a locking frame holds the jaw position for repeated checks. The carded package delivers one complete gauge ready for bench or toolbox use.

Highlights

  • Perform inside, outside and depth measurements with one tool
  • Read fractional increments in 1/16" and 1mm steps on the slide bar
  • Lock the frame to hold repeat measurements securely
  • Advance the slide smoothly using the thumb roller
  • Graduated in 16ths and 32nds with vernier reading to 1/128

Specifications

BrandGeneral
Model722
Selling UnitCard
TypeCaliper
Features* Vernier caliper
* Performs inside, outside and full length measurements
* Slide bar graduate in 1/16" and 1mm increments
* Locking frame for taking repeat measurements
* Thumb roller advances and retracts slide
* Metric and English with vernier reading of 1/128"
* Solid steel
* Carded
Shipping weight0.11 kg
Package size295 × 95 × 3 mm

Questions about this item

What does the 1/128" vernier resolution mean when I am measuring a workpiece?

The vernier scale divides each 1/16" main division into eight parts, letting you read to the nearest one-hundred-twenty-eighth of an inch for fine fit checks.

How do the 1/16" and 1 mm graduations on the slide bar limit the measurement process?

The main scale shows whole 1/16" or 1 mm steps; the vernier then interpolates between those steps, so the finest inch reading is 1/128" while the metric side remains at 1 mm resolution.

What physical space does the 5" capacity caliper need on my bench or in a tool tray?

The tool measures inside, outside and depth up to 5 inches, so allow roughly that length plus the sliding jaw travel when laying it flat or standing it upright.

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