Vermont Gage 112407450 Class Zz Minus Plug Gage 7.45 Mm

Product Description

The VERMONT GAGE 112407450 is a Class ZZ minus plug pin gage machined from steel and used to verify dimensional tolerances in precision inspection work. It measures 7.45 mm in diameter with a tolerance of 0.00508 mm, making it suitable for close-tolerance NoGo inspection applications. The overall length is 2 inches. Each unit ships with a Certificate of Accuracy traceable to NIST standards, confirming the gage meets Class ZZ dimensional requirements. Machinists, quality technicians, and metrology professionals use this type of gage to confirm that a hole or bore does not exceed its maximum allowable size.

This plug pin gage is used in machine shops, manufacturing facilities, and quality control environments where precise hole inspection is required. Typical applications include setting micrometers, verniers, and other measuring devices, as well as performing go/nogo inspection routines on drilled, reamed, or bored features. The 10 microfinish surface coating on the gage pin reduces wear during repeated use and helps maintain dimensional accuracy over time. It is suited for both incoming inspection and in-process quality checks on steel, aluminum, and other workpiece materials.

Key Features

• Class ZZ minus tolerance specification for NoGo inspection use
• 7.45 mm measurement diameter with 0.00508 mm tolerance
• 10 microfinish surface coating for reduced wear and consistent gaging contact
• Certificate of Accuracy included with NIST traceability
• Steel construction for durability in shop and lab environments
• 2 inch overall length for easy handling in standard gage holders

Compatibility

Designed for use with standard plug gage handles and compatible with micrometer setting, vernier calibration, and NoGo bore inspection routines where a 7.45 mm Class ZZ minus pin gage is specified.

Installation Notes

This gage pin is handled and used by quality technicians and metrology professionals rather than installed in a mechanical system. Store the gage in its protective case when not in use to prevent surface damage and dimensional drift. Clean the pin with a lint-free cloth before each use to remove oils and debris that could affect measurement accuracy. Handle with care and avoid dropping, as impact can alter the diameter and invalidate the NIST-traceable certification.