Spi 19-448-0 Class Zz Minus Plug Pin Gage 0.448 in

Product Description

The SPI 19-448-0 is a Class ZZ minus plug pin gage with a nominal diameter of 0.448 inches and a tolerance of 0.0002 inches. Plug pin gages are precision measurement tools used to verify bore and hole dimensions by confirming whether a feature is within its specified tolerance. The minus designation means the gage is manufactured to the lower end of the tolerance band, consistent with GO-side application in standard plug gage practice. Constructed from steel, this gage is built for repeatable, accurate use in shop-floor and inspection environments.

Class ZZ plug gages are widely used in general manufacturing, machining, and quality control applications where hole diameter verification is required. This gage is suited for checking drilled, reamed, or bored holes with a nominal diameter of 0.448 inches. Machinists, quality technicians, and tool room personnel use pin gages as part of routine dimensional inspection workflows in both production and job-shop settings.

Key Features

• Nominal diameter of 0.448 inches for direct hole verification at that size
• Class ZZ tolerance class, appropriate for general-purpose inspection
• Minus designation for GO-side gage application per standard plug gage convention
• Steel construction for durability and dimensional stability during repeated use
• Tolerance of 0.0002 inches for consistent, reliable measurement results

Compatibility

Designed as a general-purpose plug pin gage for verifying 0.448-inch nominal diameter holes in standard manufacturing and inspection applications.

Installation Notes

Plug pin gages are handled and used by machinists and quality control technicians and do not require power or mechanical installation. Clean the gage and the bore being checked before use to prevent debris from affecting measurement accuracy. Store pin gages in their case or protective container when not in use to protect the ground surface from damage. Handle with care to avoid dropping, which can alter the gage diameter and invalidate measurements.