Vermont Gage 112117680 Class Zz Plus Plug Gage 17.68mm

Product Description

The VERMONT GAGE 112117680 is a Class ZZ Plus cylindrical plug gage designed for go inspection of bored, reamed, or machined holes with a nominal diameter of 17.68 mm. Built from tool steel with a 10 microinch surface finish, this gage provides a tolerance of 0.00508 mm, making it suitable for verifying hole size conformance in production and quality control environments. Each unit ships with a Certificate of Accuracy traceable to NIST. Licensed metrology technicians, machinists, and quality inspectors rely on this gage for fast, reliable attribute inspection on the shop floor or in the inspection lab.

This plug gage is used in go inspection applications where confirming minimum acceptable hole diameter is required. It is also referenced when setting micrometers, verniers, and other measuring devices to a known diameter standard. Typical use cases include incoming inspection, in-process quality checks, and final inspection of machined components in manufacturing environments. The 2.0000-inch overall length provides a practical handling profile for bench and floor use.

Key Features

• Class ZZ Plus tolerance of 0.00508 mm for accurate go inspection
• Tool steel construction for durability and wear resistance in production environments
• 10 microinch surface finish on the gage member for consistent contact measurement
• Certificate of Accuracy with NIST traceability included with each unit
• Conforms to ASME B89.1 standards for plain plug gages
• Overall length of 2.0000 inches for practical bench and floor handling

Compatibility

Designed for go inspection of holes with a nominal diameter of 17.68 mm. Also used as a reference standard for setting micrometers, verniers, and other measuring devices requiring a certified diameter master.

Installation Notes

Plug gages are handled and used by metrology technicians, quality engineers, and machinists following ASME B89.1 inspection practices. Clean the gage member and the workpiece bore before use to prevent debris from affecting the reading or damaging the gage surface. Do not force the gage into an undersized hole, as this will damage the lapped finish and compromise calibration. Store the gage in its protective case when not in use to prevent corrosion and surface damage.