Vermont Gage 112116560 Class Zz Plus Plug Gage 16.56mm

Product Description

The VERMONT GAGE 112116560 is a Class ZZ Plus plug gage designed for precision diameter inspection of bored holes, machined bores, and similar features in a manufacturing or quality-control environment. It measures 16.56 mm in diameter and is manufactured from tool steel with a 10 micro finish coating. The tolerance is 0.00508 mm, placing it within Class ZZ Plus accuracy standards per ASME B89.1. Each unit ships with a Certificate of Accuracy with NIST Traceability, making it suitable for calibrated inspection workflows where documented traceability is required.

This plug gage is used in go-inspection applications to verify that a hole or bore meets minimum dimensional requirements. It is also used to set and verify micrometers, verniers, and other measuring devices on the shop floor or in a metrology lab. Typical users include machinists, quality technicians, and tool and die professionals working in precision machining, aerospace, automotive, or general manufacturing environments. The overall length of 2.0000 inches supports convenient single-hand use during part inspection.

Key Features

• Class ZZ Plus tolerance of 0.00508 mm for high-accuracy go-inspection work
• Tool steel construction with 10 micro surface finish for durability and repeatable contact
• Meets ASME B89.1 dimensional gage standards
• Includes Certificate of Accuracy with NIST Traceability for documented calibration records
• Overall length of 2.0000 inches for practical handling during inspection
• Compatible with go inspection, micrometer setting, and vernier calibration tasks

Compatibility

Designed for go inspection of features at 16.56 mm diameter and for setting micrometers, verniers, and other measuring devices requiring a traceable reference standard at this diameter.

Installation Notes

This gage is handled and used by quality technicians and precision machinists and requires no installation in the conventional sense. Keep the gage clean and lightly oiled when stored to prevent corrosion on the tool steel surface. Do not force the gage into a bore; if resistance is felt, the bore is undersize and should be evaluated before proceeding. Store in the original case or a padded gage block case away from abrasive surfaces to preserve the 10 micro finish and calibration integrity.