Spi 29-242-5 Class Zz Plus Plug Gage 0.242 in

Product Description

The SPI 29-242-5 is a Class ZZ Plus plug gage designed for precision go/no-go inspection of bored or drilled holes with a nominal diameter of 0.242 inches. Built to Class ZZ Plus tolerances of 0.0002 inches, this gage provides reliable dimensional verification in production and inspection environments. Machined from steel for durability and dimensional stability, the 29-242-5 is a standard tool for quality control technicians, machinists, and metrology personnel working to tight fit and tolerance specifications.

Class ZZ Plus plug gages are used in manufacturing and machine shop environments to verify whether a hole falls within acceptable dimensional limits. This gage is suited for inspection of moderate- to high-volume production runs where consistent hole size verification is required. It is appropriate for use in both job shop and production floor quality control stations where a repeatable, hand-held inspection tool is needed.

Key Features

• 0.242 inch nominal diameter for direct hole size verification
• Class ZZ Plus tolerance of 0.0002 inches for precise go/no-go inspection
• Steel construction for wear resistance and long service life
• Compact, hand-held form factor suited for production floor use
• Single-piece package quantity supports individual tooling purchases

Compatibility

Designed as an OEM-style plug gage for use in any application requiring go/no-go hole inspection at a nominal diameter of 0.242 inches and Class ZZ Plus tolerance class.

Installation Notes

Plug gages are handled and used by quality control technicians and machinists. No power source or mechanical installation is required. Keep the gage clean and lightly oiled when not in use to prevent corrosion and maintain accuracy. Periodic recalibration against a NIST-traceable master standard is recommended to ensure ongoing measurement integrity.