Spi 29-607-9 Class Zz Plus Plug Gage 0.607 in

Product Description

The SPI 29-607-9 is a Class ZZ Plus plug gage used to verify bore and hole dimensions to a nominal diameter of 0.607 inches. Built from steel, it delivers a tolerance of 0.0002 inches, making it suitable for dimensional inspection tasks where precise go/no-go verification is required. Machinists, quality control technicians, and tool-and-die professionals use plug gages like this one to confirm that drilled, reamed, or bored features fall within specified limits. The Class ZZ designation indicates a standard commercial-grade tolerance class appropriate for general inspection of production parts.

This plug gage is suited for use in machine shops, manufacturing facilities, and quality inspection environments. It is typically applied when verifying holes produced by drilling, reaming, or boring operations on ferrous and non-ferrous workpieces. The 0.607-inch nominal diameter targets a specific size range common in fixture work, tooling, and general mechanical component manufacturing. Each unit ships individually packaged for single-unit procurement.

Key Features

• Nominal diameter of 0.607 inches for precise bore verification
• Tolerance of 0.0002 inches meets Class ZZ Plus inspection standards
• Steel construction provides durability and dimensional stability
• Go/no-go format enables fast pass-fail inspection decisions
• Single-unit packaging supports individual replacement or toolroom stocking

Compatibility

Designed as an OEM-style inspection tool for use in any application requiring go/no-go hole verification at a 0.607-inch nominal diameter, consistent with ASME B89.1.5 Class ZZ plug gage standards.

Installation Notes

Plug gages are handled and used by quality technicians and machinists — no power source or utility shutoff is required. Store the gage in its protective sleeve or case when not in use to prevent surface damage and maintain calibration integrity. Apply a light film of instrument oil before use and after cleaning to prevent corrosion on the steel surfaces. Periodically verify the gage against a calibrated master to confirm it remains within tolerance over time.