Value Collection 616-81316 Class Zz Plug Gage Set 125 Pc

Product Description

The VALUE COLLECTION 616-81316 is a 125-piece Class ZZ plug gage set covering a diameter range of 0.501 to 0.625 inches. Class ZZ is the standard working-grade tolerance class for go/no-go inspection of holes and bores in production and maintenance environments. Each gage in the set carries a minus tolerance of 0.0002 inches (0.0002 mm), providing reliable dimensional verification for close-tolerance work. The set is used by machinists, quality control technicians, and tool-and-die professionals who need to verify bore diameters across a wide range of sizes without switching gage families.

This plug gage set is suited for incoming inspection, in-process quality checks, and final inspection in machine shops, manufacturing plants, and maintenance facilities. The 0.501 to 0.625 inch range covers a commonly specified bore size band found in general mechanical assemblies, hydraulic components, and precision fixtures. With 125 pieces, a single set addresses the full range in fine increments, reducing the need for multiple individual gages.

Key Features

• Class ZZ working-grade tolerance for production and maintenance inspection
• Minus tolerance type at 0.0002 inches ensures consistent go/no-go results
• 125-piece set spans 0.501 to 0.625 inches in fine diameter increments
• Single set replaces a wide range of individual plug gages for this diameter band
• Weighs 23 pounds — full kit ready for bench or incoming inspection use

Compatibility

Designed as a general-purpose Class ZZ plug gage set suitable for go/no-go bore inspection across a 0.501 to 0.625 inch diameter range in standard production and quality control applications.

Installation Notes

Plug gages are handled and stored by metrology or quality control personnel, not installed in systems. Clean bore surfaces before gaging to avoid false readings from chips or coolant residue. Store gages in the provided case away from temperature extremes to prevent thermal expansion error. Calibration intervals should follow your facility quality plan and applicable standards such as ASME B89.1.5.