Spi 29-095-7 Class Zz Plus Plug Gage 0.095 in

Product Description

The SPI 29-095-7 is a Class ZZ Plus plug gage designed for precision bore and hole measurement in machine shops, manufacturing environments, and quality control applications. Built from steel, this gage measures a nominal diameter of 0.095 inches with a tolerance of 0.0002 inches, placing it in the ZZ Plus accuracy class used for general inspection and production checking. Machinists, tooling technicians, and quality inspectors rely on plug gages like this one to verify that drilled, reamed, or bored holes meet print tolerances before parts advance to assembly.

This gage is suited for checking small-diameter holes in precision machined components across industries including aerospace, automotive, electronics, and general metalworking. At 0.095 inches, it falls in the small-bore range where calipers and micrometers are impractical for reliable go/no-go inspection. It is a single-piece unit packaged individually, making it a direct replacement or addition to an existing gage set when a specific size is needed.

Key Features

• Class ZZ Plus accuracy class for general-purpose production and inspection use
• 0.095 inch nominal measurement diameter for small-bore hole checking
• 0.0002 inch tolerance for reliable go/no-go determination
• Steel construction for durability and dimensional stability
• Single-piece package — no assembly required, ready for immediate use

Compatibility

Designed as a standard Class ZZ Plus plug gage for use with compatible gage handles or as a stand-alone check gage for 0.095 inch nominal diameter holes in precision machined parts.

Installation Notes

Plug gages are handled and used by machinists and quality technicians following standard metrology practices. Store gages in a clean, temperature-stable environment to prevent thermal expansion errors. Clean the gage and the hole being measured before use to avoid false readings from chips or debris. Never force a plug gage into a hole; if resistance is felt, the hole is undersized and the gage should be withdrawn without damage to either surface.