Vermont Gage 112315630 Class Zz Plus Plug Gage 15.63mm

Product Description

The VERMONT GAGE 112315630 is a Class ZZ Plus cylindrical plug gage designed for precision dimensional inspection of bored, reamed, or drilled holes. The gage checks a 15.63 mm nominal diameter with a tolerance of 0.005 mm, making it suitable for Go-type inspection work where tight dimensional control is required. Manufactured from tool steel with a 10 micro-inch surface finish, it delivers consistent, repeatable results in a production or quality-lab environment. Each unit ships with a Certificate of Accuracy backed by NIST traceability, confirming conformance to ASME B89.1. Machinists, quality technicians, and metrology professionals use this type of gage as a fast, reliable alternative to variable measurement when checking hole acceptance.

This plug gage is intended for Go inspection applications across manufacturing and quality-control settings, both in job shops and higher-volume production environments. It is also compatible as a calibration reference for setting micrometers, verniers, and other comparative measuring devices. The overall length of 2.0000 inches accommodates standard gage handle systems. Its compact form factor makes it practical for both bench inspection and inline checking on the shop floor.

Key Features

• Class ZZ Plus tolerance of 0.005 mm for high-accuracy Go inspection
• Tool steel construction provides durability and wear resistance under repeated use
• 10 micro-inch surface finish for consistent, accurate contact measurement
• Includes Certificate of Accuracy with NIST traceability
• Conforms to ASME B89.1 dimensional standards
• Overall length of 2.0000 inches fits standard gage handle systems

Compatibility

Designed as an OEM-style Go plug gage for use with standard gage handle systems and compatible with micrometers, verniers, and other comparative measuring devices as a setting reference.

Installation Notes

Plug gages are handled and used by quality technicians and machinists; no mechanical installation is required. Store the gage in its protective case when not in use and handle with clean, dry hands or lint-free gloves to prevent corrosion from skin contact. Verify the gage is at thermal equilibrium with the workpiece before inspection, as temperature differentials can affect measurement accuracy at this tolerance level. Calibration intervals should follow your facility quality plan and applicable metrology standards.