Spi 19-461-3 Class Zz Minus Plug Pin Gage 0.461 in

Product Description

The SPI 19-461-3 is a Class ZZ minus plug pin gage with a nominal diameter of 0.461 inches, manufactured from steel for reliable dimensional inspection in shop and toolroom environments. It carries a tolerance of 0.0002 inches, consistent with Class ZZ minus specifications for go/no-go gauging applications. This gage is used to verify hole diameters and bores to ensure conformance with print tolerances. Machinists, quality control technicians, and tool room personnel use pin gages as part of standard inspection routines. The minus designation indicates the gage is ground to the low end of the tolerance range relative to the nominal size.

This pin gage is suited for use in manufacturing, machine shops, and production inspection environments where precise hole diameter verification is required. It is appropriate for both incoming inspection and in-process quality checks on drilled, reamed, or bored holes. The 0.461-inch diameter covers a common range in precision machined components. This gage is typically used as a standalone pin or as part of a complete pin gage set.

Key Features

• Nominal diameter of 0.461 inches for precise bore and hole verification
• Class ZZ tolerance of 0.0002 inches for standard shop-grade gauging
• Minus designation ensures gage falls at the lower end of the tolerance band
• Steel construction for durability in production and toolroom use
• Lightweight at 0.2 pounds for easy single-hand use during inspection

Compatibility

Designed as a standard Class ZZ minus plug pin gage for use in go/no-go inspection of drilled, reamed, or bored holes in metalworking and machining applications.

Installation Notes

Pin gages should be handled and stored with care to prevent surface damage that could affect dimensional accuracy. Clean the gage and the part bore before inspection to remove chips, coolant, or debris. Do not force a pin gage into a hole; apply only light, even hand pressure. Gages should be periodically recalibrated per your facility quality program to confirm continued accuracy.