Spi 19-110-6 Class Zz Minus Plug Pin Gage 0.11 in

Product Description

The SPI 19-110-6 is a Class ZZ minus plug pin gage used to verify bore and hole diameters in precision machining and inspection applications. Built from steel, this gage checks a nominal diameter of 0.11 inches with a tolerance of 0.0002 inches, making it suitable for go/no-go inspection workflows where tight dimensional control is required. Class ZZ is the standard tolerance class for general-purpose inspection gages used in shop-floor and quality-control environments. Machinists, tool-and-die technicians, and quality inspectors use pin gages like this one to confirm whether a drilled or reamed hole falls within acceptable limits before assembly or further machining proceeds.

This plug pin gage is used in manufacturing, fabrication, and quality assurance settings where hole diameter verification is part of the production or inspection process. It is appropriate for checking bores in metal components, fixtures, and machined parts. The minus designation means the gage is manufactured to the lower half of the tolerance band, which is standard practice for plug gages used in go-gage applications. It is a single-ended gage sized for 0.11-inch nominal diameter holes.

Key Features

• Class ZZ tolerance class for general-purpose shop and inspection use
• Minus designation — manufactured to the lower half of the tolerance band for go-gage applications
• 0.0002-inch tolerance for reliable dimensional verification
• Steel construction for durability and wear resistance in shop environments
• 0.11-inch nominal diameter for small-bore inspection

Compatibility

Designed as an OEM-style replacement or direct-use gage for standard Class ZZ plug gage sets and holders sized for 0.11-inch nominal diameter inspection applications.

Installation Notes

Pin gages should be handled with clean, dry hands or cotton gloves to prevent corrosion from skin oils, which can affect measurement accuracy over time. Store gages in a protective case away from other tools to prevent nicking or surface damage. When using in a go/no-go application, apply light, consistent hand pressure — never force a plug gage into a hole. Periodic cleaning and light oiling with instrument-grade oil will extend service life and maintain accuracy.