Spi 19-232-8 Class Zz Minus Plug Pin Gage 0.232 in

Product Description

The SPI 19-232-8 is a Class ZZ minus plug pin gage with a 0.232-inch diameter, designed for go/no-go dimensional inspection of drilled, reamed, or punched holes. It is machined from steel and holds a tolerance of 0.0002 inches, consistent with Class ZZ specifications for general-purpose inspection work. This tool is used to verify that a hole falls within the lower acceptable limit of a specified diameter. Machinists, tool-and-die workers, and quality control inspectors use plug gages as part of standard in-process and final inspection routines on the shop floor or inspection bench.

Class ZZ plug gages are suited for production inspection where high precision is required but ultra-tight Class Z or ZZ-plus tolerances are not specified. The 19-232-8 is appropriate for checking holes in metal, plastic, or composite workpieces in manufacturing, fabrication, and assembly environments. Its compact, single-ended pin form fits easily into standard gage holders or can be used by hand for quick pass-fail checks. This gage is a standard reference tool for any shop maintaining dimensional quality control to common ANSI or ASME B89 gage standards.

Key Features

• 0.232-inch nominal diameter for precise hole size verification
• Class ZZ minus tolerance of 0.0002 inches per ANSI gage standards
• Steel construction for durability and wear resistance in production environments
• Minus designation indicates the gage is undersized relative to nominal, serving as the go member in a go/no-go inspection pair
• Lightweight at 0.2 pounds for easy one-hand use during inspection

Compatibility

Designed as an OEM-style replacement or standard addition to any Class ZZ plug gage set for inspecting 0.232-inch nominal diameter holes in production or inspection applications.

Installation Notes

Plug pin gages require no installation but should be handled with clean, dry hands or lint-free gloves to prevent corrosion from skin oils. Store the gage in its protective case or a clean, dry environment when not in use. Inspect the gage pin for nicks or wear before use, as surface damage will produce false readings. Calibration should be verified periodically against a traceable standard in accordance with your quality management system requirements.