Vermont Gage 112306230 Class Zz Plus Plug Gage 6.23mm

Product Description

The VERMONT GAGE 112306230 is a Class ZZ Plus plug gage designed for dimensional inspection of bored, drilled, and reamed holes. It checks a 6.23 mm nominal diameter with a tolerance of 0.00508 mm, making it suitable for Go inspection applications where precise hole-size verification is required. Manufactured from tool steel and finished to a 10 microfinish surface, the gage resists wear under repeated use in shop and quality-control environments. Each unit ships with a Certificate of Accuracy traceable to NIST, satisfying documentation requirements for calibrated inspection tooling. Metrology technicians, machinists, and quality engineers use this type of gage as part of a complete attribute inspection process.

This plug gage is used in Go inspection routines to verify that a hole meets its minimum acceptable size before a part advances in production. It is also used to set and verify micrometers, verniers, and other measuring devices. Typical applications span precision machining, assembly inspection, and incoming quality control in both job-shop and high-volume manufacturing environments. The 2.0000-inch overall length accommodates standard handle holders and fits smoothly into bench-top and fixture-mounted inspection setups.

Key Features

• Class ZZ Plus tolerance class: 0.00508 mm tolerance for Go inspection accuracy
• 6.23 mm inspection diameter for precise hole verification
• Tool steel construction for durability and wear resistance in production use
• 10 microfinish surface coating minimizes friction and extends gage life
• NIST-traceable Certificate of Accuracy included for calibration records
• Meets ASME B89.1 standards for plain plug gages

Compatibility

Designed as an OEM-style Class ZZ Plus plug gage for use with standard plug gage handle holders and for Go inspection of 6.23 mm nominal-diameter features; also suitable for setting micrometers, verniers, and other calibrated measuring devices.

Installation Notes

Plug gages are handled and used by metrology technicians and quality-control personnel following ASME B89.1 inspection practices. Store the gage in its protective case when not in use to prevent damage to the precision-ground surface. Clean the gage and the hole being inspected before each use to avoid measurement errors caused by debris or coolant residue. Do not force the gage into a hole; apply only light, steady hand pressure to avoid scoring the gage or the workpiece.