Vermont Gage 112315550 Class Zz Plus Plug Gage 15.55mm

Product Description

The VERMONT GAGE 112315550 is a Class ZZ Plus plug gage designed for precision dimensional inspection in machine shops, quality control labs, and toolrooms. It features a 15.55 mm nominal diameter with a tolerance of 0.00508 mm, making it suitable for Go inspection applications where tight dimensional verification is required. The gage is manufactured from tool steel with a 10 micro coating finish, providing durability and consistent surface integrity for repeated use. A Certificate of Accuracy with NIST traceability is included, supporting documentation requirements for ISO and quality management system compliance. Licensed machinists, quality technicians, and metrologists are the primary installers and users of this instrument.

This plug gage is used in Go inspection routines to verify that bored holes, machined openings, and precision features meet minimum dimensional requirements. It is also compatible with setup and verification procedures for micrometers, verniers, and other measuring devices. Typical applications include incoming inspection, in-process quality checks, and final part acceptance on machined components in both production and job-shop environments. The 2.0000-inch overall length suits standard handle configurations.

Key Features

• Class ZZ Plus tolerance grade: 0.00508 mm for high-accuracy Go inspection
• Tool steel construction with 10 micro coating finish for wear resistance
• Includes Certificate of Accuracy with NIST traceability for documentation compliance
• Conforms to ASME B89.1 standard
• Suitable for setting and verifying micrometers, verniers, and other measuring devices
• Compact 2.0000-inch overall length fits standard plug gage handles

Compatibility

Designed for Go inspection use with micrometers, verniers, and other precision measuring devices as stated by the manufacturer. Suitable for applications governed by ASME B89.1.

Installation Notes

Plug gages are handled and applied by quality technicians and machinists trained in dimensional metrology. Keep the gage clean and lightly oiled when not in use to prevent corrosion on the tool steel surface. Do not force the gage into a feature under inspection; proper Go inspection requires free entry under controlled hand pressure only. Store in the provided case or a protected location away from impact and extreme temperature variation to maintain calibration integrity.