Vermont Gage 112116420 Class Zz Plus Plug Gage 16.42mm

Product Description

The VERMONT GAGE 112116420 is a Class ZZ Plus cylindrical plug gage machined from tool steel for dimensional inspection of internal bores and holes. Designed for go inspection work, this gage checks whether a hole falls within its specified tolerance window. The 16.42 mm nominal diameter is held to a 0.00508 mm tolerance, and the gaging surfaces are finished to a 10 microfinish for consistent, low-friction contact. A Certificate of Accuracy with NIST traceability ships with each unit, making this gage ready for documented quality-control workflows right out of the box.

This plug gage is suited for use in machine shops, tool rooms, and manufacturing inspection stations wherever precision bore verification is required. Typical applications include checking drilled, reamed, or bored holes against print tolerances. It also serves as a reference standard when setting micrometers, verniers, and other comparative measuring instruments. The compact overall length of 2.0 inches makes it easy to handle in both bench-top and in-line inspection setups. Machinists, quality technicians, and metrologists working to ASME B89.1 standards will find this gage fits standard inspection protocols.

Key Features

• Class ZZ Plus tolerance grade with 0.00508 mm tolerance for reliable go inspection
• 16.42 mm nominal diameter ground to a 10 microfinish for smooth, repeatable gaging contact
• Tool steel construction provides hardness and wear resistance for extended service life
• Includes Certificate of Accuracy with NIST traceability for documented QC compliance
• Meets ASME B89.1 standards for plain cylindrical gages
• Compatible with standard gage handle sets for convenient single-hand operation

Compatibility

Designed as an OEM-style go plug gage for use with standard gage handle sets; suitable for any inspection application requiring verification of a 16.42 mm nominal bore diameter.

Installation Notes

Plug gages are typically handled by quality technicians or machinists and require no permanent installation. Before use, clean the gaging surfaces and the bore being checked with a lint-free cloth to remove chips, coolant, or debris that could cause false readings. Apply only light, consistent hand pressure when inserting the gage — forcing the gage into an undersize hole will damage the gaging surface. Store in a protective case away from temperature extremes to maintain dimensional stability and traceability.