Spi 19-094-2 Class Zz Minus Plug Pin Gage 0.094 in

Product Description

The SPI 19-094-2 is a Class ZZ minus plug pin gage machined to a nominal diameter of 0.094 inches with a tolerance of 0.0002 inches. It is used to verify that a hole or bore meets minimum acceptable size specifications using the go/no-go inspection method. The minus designation means the gage is ground to the lower end of the tolerance range, making it appropriate for minus-limit inspection work. Constructed from steel, this pin gage is a standard precision measurement tool used in quality control and machining environments by machinists, toolmakers, and metrology technicians.

This pin gage is suited for inspection of small-diameter holes in manufactured components across light manufacturing, machine shops, and precision fabrication settings. Class ZZ is the commercial-grade tolerance class, appropriate for general-purpose production inspection where high-precision gage block accuracy is not required. It is sold individually and is compatible with standard pin gage handle sets designed for small-diameter pins in this size range.

Key Features

• Class ZZ minus tolerance class for commercial-grade go/no-go inspection
• Nominal diameter of 0.094 inches with 0.0002-inch tolerance
• Steel construction for durability in shop environments
• Minus designation for lower-limit hole size verification
• Single-piece packaging suitable for individual replacement or kit supplementation

Compatibility

Designed for use with standard pin gage handle sets that accept small-diameter plug pins in the 0.094-inch size range. Suitable for general production inspection applications requiring Class ZZ minus plug gages.

Installation Notes

Pin gages should be handled with clean, dry hands or lint-free gloves to prevent corrosion from skin oils. Insert the pin gage into the bore with light, controlled hand pressure only — never force or drive the pin. Store pins in a protective case away from other metal tools to prevent damage to the ground surface. Periodic cleaning and light oiling with instrument oil will extend service life and maintain measurement accuracy.