Vermont Gage 111417450 Class Zz Minus Plug Pin Gage 0.1745 in

Product Description

The VERMONT GAGE 111417450 is a Class ZZ minus-tolerance plug pin gage ground to a 0.1745-inch diameter for NoGo inspection work. It is a single-end steel pin gage used to verify that a bored or reamed hole does not fall below its minimum acceptable size. The 2-inch overall length provides enough handling clearance for benchtop and in-process checks. Each unit ships with a Certificate of Accuracy traceable to NIST, supporting quality-management documentation requirements. Machinists, toolmakers, and quality-control technicians use this gage as part of standard go/no-go gaging protocols on precision components.

This pin gage is suited for inspection of drilled, reamed, or bored holes in manufacturing and job-shop environments. The Class ZZ tolerance designation makes it appropriate for production-floor inspection rather than master or reference gage applications. It is also used to set and verify micrometers, verniers, and other measuring devices requiring a known reference diameter. Typical users include CNC machinists, quality inspectors, and toolroom technicians working with close-tolerance hole features in metal, plastic, or composite workpieces.

Key Features

• Class ZZ minus tolerance of 0.0002 inches — designed specifically for NoGo inspection use
• 0.1745-inch measurement diameter ground to a 10 microfinish surface finish
• 2-inch overall length for comfortable single-hand use during inspection
• Steel construction provides durability for repeated production-floor use
• Includes Certificate of Accuracy with NIST traceability for quality and audit documentation
• Compatible with use as a setting reference for micrometers, verniers, and other measuring devices

Compatibility

Designed as a NoGo plug pin gage for verifying minimum hole size tolerances and for setting micrometers, verniers, and other precision measuring devices requiring a calibrated reference diameter.

Installation Notes

Pin gages are handled and stored by metrology or toolroom personnel — no power tools or cutting are involved. Always clean the gage and the part bore with a lint-free cloth before use to prevent debris from affecting the reading or damaging the gage surface. Store the gage in its protective case when not in use to prevent nicks and corrosion. Periodic recalibration against NIST-traceable standards is recommended to maintain measurement integrity.