Spi 29-937-0 Class Zz Plus Plug Gage 0.937 Inch

Product Description

The SPI 29-937-0 is a Class ZZ Plus plug gage used to verify bore and hole diameters to a precise measurement of 0.937 inches. Manufactured from steel, this go/no-go style gage is a standard inspection tool in machining, manufacturing, and quality control environments. It carries a tolerance of 0.0002 inches, meeting Class ZZ Plus accuracy requirements for dimensional verification work. Machinists, quality technicians, and tool room professionals use plug gages like this one to confirm that drilled, reamed, or bored features fall within acceptable tolerance bands before parts move to the next stage of production.

This plug gage is suited for use in machine shops, fabrication facilities, and production floor inspection stations where hole diameter conformance must be documented or verified. It applies wherever a 0.937 inch nominal diameter bore needs to be checked against specification. The compact size and low weight of 0.2 pounds make it easy to handle during repetitive inspection tasks on the bench or at the machine.

Key Features

• 0.937 inch nominal diameter for direct bore verification at that size
• Class ZZ Plus tolerance of 0.0002 inches for accurate go/no-go inspection
• Steel construction for durability and wear resistance in production environments
• Lightweight at 0.2 pounds for easy single-hand use during inspection
• Single-piece package quantity for individual tool inventory and crib management

Compatibility

Designed as a standard Class ZZ Plus plug gage for inspecting 0.937 inch nominal diameter bores in machined components across general manufacturing and quality control applications.

Installation Notes

Plug gages are handled and used by quality technicians or machinists and require no permanent installation. Store the gage in a protective case when not in use to prevent nicks or surface damage that could affect accuracy. Clean the gage and the bore being measured before use to remove chips, coolant, or debris. Do not force the gage into an undersized bore, as this can damage the gage surface and compromise measurement integrity.