Spi 22-194-5 Class Zz Plug Gage Set 19-20.98mm 100pc

Product Description

The SPI 22-194-5 is a Class ZZ plug gage set covering a diameter range of 19 to 20.98 mm with a plus tolerance of 0.005 mm per gage. The set contains 100 individual plug gages used to verify bore and hole diameters in production and inspection environments. Class ZZ designation indicates a working-grade tolerance class appropriate for general-purpose go/no-go inspection tasks on production floors and in quality control departments. Machinists, quality technicians, and tool-room personnel use sets like this to confirm dimensional conformance on machined components without the need for additional measuring equipment.

This plug gage set is suited for dimensional inspection of bored, reamed, or drilled holes in the 19 to 20.98 mm diameter range. Applications include incoming inspection, in-process quality checks, and final inspection of machined parts in manufacturing, aerospace support shops, automotive component facilities, and general metalworking environments. The 100-piece configuration provides coverage across the full stated diameter range, allowing technicians to step through sizes systematically during inspection routines.

Key Features

• Class ZZ working-grade tolerance for general-purpose hole inspection
• Plus tolerance of 0.005 mm for consistent go/no-go measurement
• 100-piece set covering 19 to 20.98 mm diameter range
• Designed for production floor and quality control inspection use
• UNSPSC Code 41111600 for procurement classification

Compatibility

Designed as a general-purpose Class ZZ plug gage set suitable for inspecting bored or reamed holes in the 19 to 20.98 mm diameter range across standard machined components.

Installation Notes

Plug gages should be handled and stored carefully to prevent damage to gage surfaces, which can affect measurement accuracy. Before use, clean both the gage and the bore to remove chips, coolant, and debris. Apply light insertion force only — forcing a plug gage into an undersize hole can damage the gage and distort inspection results. Periodic recalibration against certified reference standards is recommended to maintain measurement integrity over time.