Value Collection 616-81026 Class Zz Plug Gage Set 50 Pc

Product Description

The VALUE COLLECTION 616-81026 is a 50-piece Class ZZ plug gage set designed for go/no-go inspection of small-diameter bores and holes. It covers a measurement range of 0.0115 to 0.0605 inches with a plus-tolerance of 0.000200 inches (0.0002 mm), placing it in the Class ZZ category — the standard tolerance grade for general inspection work. Machinists, toolroom technicians, and quality control inspectors use these gages to verify dimensional conformance on drilled, reamed, or punched holes where tight tolerances are specified.

This set is suited for use in manufacturing, machine shop, and quality assurance environments where small-diameter hole inspection is routine. The wide range of gage sizes included in the 50-piece set makes it practical for shops working across a variety of part prints and hole specifications. Class ZZ gages are commonly applied in production inspection of components where moderate tolerance requirements are maintained, rather than the tighter Class Z or ZZ-minus standards used in high-precision master gage applications.

Key Features

• 50-piece set covering 0.0115 to 0.0605 inches in diameter range
• Class ZZ tolerance grade — standard for general production inspection
• Plus-tolerance type at 0.000200 inches (0.0002 mm) per gage
• Compact diameter range suited for small-bore and fine-hole inspection
• Set format reduces the need for individual gage sourcing across the covered range

Compatibility

Designed as a general-purpose Class ZZ plug gage set for use in standard small-diameter bore inspection applications across a range of 0.0115 to 0.0605 inches.

Installation Notes

Plug gages are handled and used by trained inspection or toolroom personnel — not installed in a system. Before use, clean the gage and the bore being checked with a lint-free cloth to remove debris, oil, or chips that can affect reading accuracy. Do not force a plug gage into a hole; if resistance is met, the bore is likely undersize. Store gages in the provided case or a protected tray to prevent surface damage and maintain calibration integrity.