Vermont Gage 112307310 Class Zz Plus Plug Gage 7.31mm

Product Description

The VERMONT GAGE 112307310 is a Class ZZ Plus cylindrical plug gage used to verify bore and hole diameters to tight dimensional tolerances. Manufactured from tool steel with a 10 microfinish surface coating, this gage measures a nominal diameter of 7.31 mm with a tolerance of 0.005 mm. The overall length is 2.0000 inches, making it compact and easy to handle during inspection tasks. Each unit ships with a Certificate of Accuracy traceable to NIST, confirming it meets the dimensional requirements of ASME B89.1. It is suited for go inspection applications and for setting or verifying micrometers, verniers, and other precision measuring devices.

This plug gage is used in manufacturing, machining, and quality control environments where precise hole diameter verification is required. It is appropriate for both production floor inspection and tool room calibration tasks. The go inspection function confirms that a bore meets its minimum acceptable size before a workpiece moves forward in the manufacturing process. Machinists, quality technicians, and metrology professionals handling precision parts will find this gage suited to their daily inspection routines.

Key Features

• Class ZZ Plus tolerance class: 0.005 mm tolerance for high-accuracy go inspection
• 7.31 mm nominal diameter in tool steel construction
• 10 microfinish surface coating for consistent, repeatable gage contact
• 2.0000 inch overall length for comfortable single-hand use
• Includes Certificate of Accuracy with NIST traceability
• Conforms to ASME B89.1 dimensional gage standards

Compatibility

Designed for use in go inspection applications and for setting micrometers, verniers, and other precision measuring devices requiring a 7.31 mm reference diameter.

Installation Notes

Plug gages are handled and used by quality technicians and machinists trained in precision measurement practices. Store the gage in its protective case when not in use to prevent surface damage or corrosion. Clean the gage surface with a lint-free cloth before use to remove oils or debris that could affect the reading. Avoid dropping or stacking gages with other metal tooling, as contact damage to the lapped surface will compromise accuracy.