Vermont Gage 112102860 Class Zz Plus Plug Gage 2.86mm

Product Description

The VERMONT GAGE 112102860 is a Class ZZ Plus plug gage designed for precise dimensional inspection of small-diameter bores and holes. Ground from tool steel to a diameter of 2.86 mm with a tolerance of 0.00508 mm, this gage delivers the accuracy required for go inspection tasks. The 10 microfinish surface minimizes wear and ensures consistent contact geometry across repeated measurements. It ships with a Certificate of Accuracy traceable to NIST, making it suitable for quality control environments that require documented calibration traceability. Metrologists, toolroom technicians, and quality inspectors are the primary users of this gage.

This plug gage is used in machine shops, manufacturing facilities, and inspection labs where small bore verification is required. It is appropriate for go inspection applications and is also used to set and verify micrometers, verniers, and other measuring devices. The 2.86 mm diameter targets applications requiring precise hole-size confirmation on machined components, tooling, and fixtures. Its compact size and low weight make it easy to handle at the bench or on the shop floor.

Key Features

• Class ZZ Plus tolerance of 0.00508 mm for high-accuracy go inspection
• 2.86 mm ground diameter in tool steel for durability and wear resistance
• 10 microfinish surface for consistent gage contact and extended service life
• Includes Certificate of Accuracy with NIST-traceable calibration documentation
• Conforms to ASME B89.1 standards for plain plug gages
• Suitable for setting micrometers, verniers, and other measuring devices

Compatibility

Designed as an OEM-style go plug gage for use with standard gage handle holders accepting the appropriate wire-size gage blank, and suitable for go inspection of any bore or hole nominally at 2.86 mm diameter per ASME B89.1 application requirements.

Installation Notes

Plug gages are handled and used by metrology technicians and quality control inspectors. Store the gage in its protective case when not in use to prevent surface damage and corrosion. Clean the gage and the bore being inspected before use to avoid false readings caused by debris or cutting fluid. Apply only light, controlled hand pressure during inspection — never force a go gage through a bore.