Starrett 67484-HS Class Zz Plug Gage Set 250 Pc

Product Description

The STARRETT 67484-HS is a Class ZZ plug gage set covering a diameter range of 0.251 to 0.500 inches in 250 individual gages. Each gage is manufactured from steel and held to a plus tolerance of 0.0002 inches, meeting Class ZZ standards for general-purpose GO gage inspection work. The set is color coded for fast identification and ships with a fully adjustable GO gage handle included. A protective case is furnished with every set. This tool is used by machinists, quality control technicians, and tool-room professionals who need reliable, repeatable hole and slot measurement across a broad size range.

This set is suited for inspecting drilled, reamed, and punched holes in production and job-shop environments. The 250-piece range from 0.251 to 0.500 inches makes it practical for gaging slots and locating hole distances in addition to standard round-hole verification. The adjustable handle accommodates the smaller sizes in the set, making it easier to work through tight clearances on parts. Residential and light commercial machine shops, fabrication facilities, and metrology labs are the primary install environments for a set of this scope.

Key Features

• Class ZZ tolerance standard: plus 0.0002 inches per gage
• 250-piece set spanning 0.251 to 0.500 inches diameter range
• Color-coded gages for rapid size identification
• Fully adjustable GO gage handle furnished with the set
• Suited for gaging slots and finding hole distances in addition to standard hole inspection
• Protective carrying and storage case included

Compatibility

Designed as a general-purpose Class ZZ plug gage set for use with standard adjustable gage handles; compatible with inspection procedures requiring GO gage verification in the 0.251 to 0.500 inch diameter range.

Installation Notes

Plug gages are handled and used by machinists and quality technicians, not installed in a system. Before use, verify the gage and workpiece are at the same temperature to avoid thermal expansion error. Never force a plug gage into a hole; apply only light hand pressure. Store gages in the furnished protective case and apply a light coat of rust-preventive oil when not in use to protect the steel surfaces.