Spi 22-192-9 Class Zz Plug Gage Set 125 Pc Nist

Product Description

The SPI 22-192-9 is a 125-piece Class ZZ plug gage set designed for fast, accurate measurement of hole sizes, slot widths, and distances between holes. The set covers a diameter range of 14.000 mm to 16.48 mm with a plus 0.005 mm tolerance, meeting Class ZZ standards for inspection-grade gaging. Each pin gage is held in an included pin gage holder, and the set ships with a Certificate of Accuracy that is NIST traceable. Machinists, quality control technicians, and tool room personnel rely on sets like this for GO gaging inspection in production and incoming inspection environments.

This plug gage set is suited for use in machine shops, manufacturing facilities, and quality inspection departments where repeatable hole measurement is required. The 125-piece configuration spanning 14.000 mm to 16.48 mm covers a practical range for medium-sized bores and slots. The Class ZZ tolerance classification makes this set appropriate for general-purpose inspection rather than master or reference gaging. The NIST traceable certificate supports quality management system documentation requirements such as ISO 9001 and AS9100 programs.

Key Features

• 125 individual pin gages covering 14.000 mm to 16.48 mm diameter range
• Class ZZ classification with plus 0.005 mm tolerance for general inspection use
• NIST traceable Certificate of Accuracy included for QMS documentation
• Pin gage holder included for organized storage and retrieval
• Suitable for GO gaging inspection, slot width measurement, and hole-to-hole distance calculation

Compatibility

Designed as a general-purpose Class ZZ plug gage set for use with any workpiece or fixture requiring hole or slot inspection in the 14.000 mm to 16.48 mm diameter range.

Installation Notes

Plug gages are handled and used by quality technicians or machinists and do not require installation in the conventional sense. Before use, clean gage pins and workpiece bores with a lint-free cloth to remove chips, oils, or debris that could affect measurement accuracy. Store pins in the provided holder when not in use to prevent surface damage and maintain calibration integrity. Re-certify or re-calibrate the set at intervals required by your quality management system.