Vermont Gage 1.2998 Plus Class Zz Plus Plug Gage

Product Description

The VERMONT GAGE 1.2998 PLUS is a Class ZZ Plus tolerance plug gage used to verify bore and hole diameters in precision machining and inspection applications. Designed for go/no-go dimensional checking, this gage member confirms that a 1.2998-inch diameter feature meets specified tolerances. Class ZZ Plus gages are manufactured to tighter dimensional accuracy than standard Class ZZ, making them appropriate for quality control work where reliable measurement repeatability is required. The handle is sold separately, allowing technicians to pair this gage member with the appropriate handle size for the application. Installation and use fall within the scope of metrology technicians, machinists, and quality inspection personnel.

This plug gage is suited for use in manufacturing and inspection environments where hole or bore diameter verification at 1.2998 inches is required. Typical applications include incoming inspection, in-process quality control, and final inspection of machined components across industries such as automotive, aerospace, and general manufacturing. The gage is used as a single gage member and requires a separately sourced handle for proper use in a standard plug gage assembly.

Key Features

• Class ZZ Plus tolerance rating for tighter dimensional accuracy than standard Class ZZ
• Nominal measurement diameter of 1.2998 inches for precise bore verification
• Single gage member design — handle sold separately for flexible assembly pairing
• Suitable for go/no-go inspection workflows in production and quality environments
• Individual package quantity of 1 gage member per unit

Compatibility

Designed as an OEM-style replacement or direct-use gage member compatible with standard plug gage handles sized for a 1.2998-inch diameter gage member. Handle must be sourced separately.

Installation Notes

This gage member is installed into a compatible plug gage handle by a qualified metrology technician or machinist. Ensure the gage and mating handle are clean and free of debris before assembly to avoid measurement error. Do not force the gage member into a handle — proper seating should require no excessive pressure. Handle and gage should be stored in a controlled environment to prevent thermal expansion effects on measurement accuracy.