Vermont Gage 112119700 Class Zz Plus Plug Gage 19.7mm

Product Description

The VERMONT GAGE 112119700 is a Class ZZ Plus plug gage designed for go inspection of bored, drilled, and reamed holes with a nominal diameter of 19.7 mm. Manufactured from tool steel, it holds a tolerance of 0.00508 mm and carries a 10 microinch surface finish. Each unit ships with a Certificate of Accuracy traceable to NIST, making it suitable for documented quality-control processes. Licensed metrologists, machinists, and QC technicians use this gage to verify that a hole falls within acceptable dimensional limits before parts advance to the next production stage.

This plug gage is suited for production floor and inspection room environments where hole diameter conformance must be verified quickly and reliably. Typical applications include go inspection of machined components in manufacturing, as well as calibration reference use alongside micrometers, verniers, and other measuring devices. The 2.0 inch overall length provides adequate handle engagement for single-hand operation in most fixturing setups. It is appropriate for both high-volume production inspection and bench-level metrology work.

Key Features

• Class ZZ Plus tolerance class — 0.00508 mm tolerance for tight dimensional control
• 10 microinch surface finish for consistent, repeatable gage contact
• Tool steel construction for hardness and wear resistance under repeated use
• Includes Certificate of Accuracy with NIST traceability for documented QC compliance
• Conforms to ASME B89.1 standards
• Overall length of 2.0 inches for practical single-hand use

Compatibility

Designed as an OEM-style go plug gage for use in go inspection applications and as a reference standard with micrometers, verniers, and other measuring devices where a 19.7 mm diameter check is required.

Installation Notes

Plug gages are handled and used by qualified machinists, metrologists, or QC inspectors — no power shutoff is required. Store the gage in its protective case when not in use to prevent nicking the ground surfaces. Apply a light coat of instrument-grade oil before storage to inhibit corrosion on the tool steel body. Never force the gage through a hole; if resistance is felt, the hole is undersized and forcing the gage will damage the ground diameter.