Spi 19-464-7 Class Zz Minus Plug Pin Gage 0.464 in

Product Description

The SPI 19-464-7 is a Class ZZ minus plug pin gage machined from steel for dimensional inspection of hole diameters. It measures 0.464 inches in diameter and carries a tolerance of 0.0002 inches, placing it within the Class ZZ specification for go/no-go and dimensional verification work. Plug pin gages of this type are used by machinists, quality control inspectors, and toolroom technicians to verify bore sizes against print tolerances. The minus designation means the gage is manufactured to the lower end of the tolerance band, following standard GO gage convention.

This gage is suited for production floor inspection, incoming material checks, and tooling verification in machine shops, manufacturing facilities, and job shops. At 0.464 inches diameter, it covers a common bore size found in mechanical assemblies, fixtures, and machined components. It is appropriate for use in both light manufacturing and precision machining environments where consistent dimensional verification is required.

Key Features

• Class ZZ tolerance classification for general-purpose dimensional inspection
• Minus designation manufactured to lower tolerance band per GO gage convention
• 0.464 inch nominal diameter for common bore verification applications
• 0.0002 inch tolerance for reliable go/no-go and dimensional checks
• Steel construction for durability in production and toolroom environments

Compatibility

Designed as a general-purpose Class ZZ plug pin gage for use with standard bore inspection applications at 0.464 inches nominal diameter.

Installation Notes

Plug pin gages should be handled with clean, dry hands or cotton gloves to prevent corrosion from skin oils. Always clean the gage and bore before use to avoid false readings caused by debris or residue. Store the gage in its protective case when not in use to prevent surface damage. Calibration and use practices should follow applicable ASME B89.1.5 or equivalent dimensional metrology standards.