Spi 19-267-4 Class Zz Minus Plug Pin Gage 0.267 in

Product Description

The SPI 19-267-4 is a Class ZZ minus plug pin gage with a 0.267-inch nominal diameter, manufactured from steel for reliable dimensional inspection in shop and production environments. Class ZZ is the standard tolerance grade for go/no-go inspection of general-purpose hole and bore dimensions. This gage carries a minus tolerance of 0.0002 inches, positioning the gage below nominal for use as a go member or as a standalone inspection tool. It is used by machinists, quality technicians, and tool-and-die professionals who need traceable, repeatable hole-size verification.

This plug pin gage is suited for inspection of drilled, reamed, or bored holes in metal, plastic, or composite workpieces across light manufacturing, job-shop machining, and quality-control applications. The 0.267-inch diameter falls within a common range used for fastener clearance holes and precision-fit bores in general mechanical assemblies. Single-piece packaging makes it practical to stock individually or as part of a complete gage set.

Key Features

• Class ZZ tolerance grade for general-purpose go/no-go hole inspection
• Minus tolerance of 0.0002 inches for precise below-nominal sizing
• 0.267-inch nominal diameter for common fastener and bore applications
• Steel construction for durability and wear resistance in production use
• Single-piece unit — no minimum multi-piece purchase required

Compatibility

Designed as a standard Class ZZ minus plug pin gage for general-purpose dimensional inspection of holes and bores at the 0.267-inch nominal diameter.

Installation Notes

Plug pin gages are handled and used by quality technicians and machinists — no power tools or utility shutoffs are required. Store the gage in a dry, temperature-stable environment to prevent corrosion and thermal expansion errors that affect measurement accuracy. Clean the gage and bore before use to avoid false readings from chips or debris. Calibration intervals should follow your facility's quality management procedures.