Spi 22-154-9 Class Zz Plug Gage Set 50 Piece

Product Description

The SPI 22-154-9 is a 50-piece Class ZZ plug gage set designed for precise measurement of hole sizes, slot widths, and distances between holes. Built from steel, this set covers a diameter range of 0.011 to 0.06 inches with a plus tolerance of 0.000200 inches, making it a dependable choice for go-gage inspection workflows. It includes a certificate of accuracy backed by NIST traceability and a pin gage holder, giving technicians and quality control personnel everything needed to begin inspecting parts immediately. This set is suited for machinists, tool-and-die workers, and QC inspectors who require fast, repeatable hole measurement results.

The 22-154-9 is intended for shop floor and inspection room use wherever small-diameter hole verification is required. It supports quick and accurate measurements across a range of applications including incoming inspection, in-process verification, and final part acceptance. The pin gage holder keeps the set organized and accessible during active use. Its compact size makes it practical for bench use or transport between workstations in light manufacturing or precision machining environments.

Key Features

• 50-piece set covering 0.011 to 0.06 inches diameter range
• Class ZZ tolerance of 0.000200 inches (plus tolerance type)
• Steel construction for durability in production environments
• NIST traceable certificate of accuracy included
• Pin gage holder included for organized storage and retrieval
• Supports go-gage inspection, hole size measurement, and slot width verification

Compatibility

Designed as a standard Class ZZ plug gage set for use in general inspection and quality control applications requiring small-diameter hole measurement from 0.011 to 0.06 inches.

Installation Notes

Plug gages are handled and used by machinists, toolmakers, and quality control inspectors and do not require installation in the conventional sense. Store pins in the included holder when not in use to prevent damage to precision surfaces. Clean and inspect pins before each use, and avoid dropping or forcing pins through holes, as this can alter calibration. Periodic recalibration against a NIST traceable standard is recommended to maintain measurement integrity.