Vermont Gage 112107340 Class Zz Plus Plug Gage 7.34 Mm

Product Description

The VERMONT GAGE 112107340 is a Class ZZ Plus plug gage machined from tool steel and sized to a 7.34 mm diameter. It is used to verify bore dimensions in production and inspection environments where precise hole tolerances must be confirmed before parts move forward in a manufacturing or quality-control workflow. The gage holds a tolerance of 0.00508 mm and is finished to a 10 microfinish surface, both of which support accurate, repeatable measurement. A Certificate of Accuracy with NIST traceability is included, meeting the documentation requirements common to ISO- and AS9100-registered shops. Overall length is 2.0 inches. Machinists, quality technicians, and tool-room professionals are the primary users.

This plug gage is suited to go-inspection applications where the goal is confirming that a bore is at or above the minimum acceptable size. It is also compatible with setup and verification tasks involving set micrometers, verniers, and other precision measuring devices. Typical use cases include incoming inspection, in-process checks on CNC-machined bores, and final acceptance inspection in job shops, production facilities, and metrology labs. The Class ZZ Plus classification indicates the gage meets ASME B89.1 standards for this grade, making it appropriate for general industrial inspection rather than master or reference gage applications.

Key Features

• 7.34 mm diameter sized for go-inspection of bores to Class ZZ Plus tolerances
• Tolerance of 0.00508 mm for tight, repeatable dimensional verification
• 10 microfinish surface finish reduces wear and supports accurate contact measurement
• Tool steel construction provides durability under regular production-inspection use
• Meets ASME B89.1 standards for plug gage classification and dimensional accuracy
• Includes Certificate of Accuracy with NIST traceability for quality-system documentation

Compatibility

Designed for use as a go plug gage in bore inspection applications and for setting or verifying set micrometers, verniers, and other precision measuring devices per ASME B89.1 requirements.

Installation Notes

Plug gages are handled and used by quality technicians and machinists; no installation in the traditional sense applies. Store the gage in its case when not in use to prevent nicks or corrosion that would affect accuracy. Do not force the gage into a bore; if resistance is encountered, the bore is undersize and the gage should be withdrawn without applying lateral pressure. Periodic recalibration against NIST-traceable masters is recommended to maintain measurement integrity over time.