Value Collection 616-81226 Class Zz Plug Gage Set 250 Pc

Product Description

The VALUE COLLECTION 616-81226 is a Class ZZ plug gage set designed for go/no-go dimensional inspection of drilled, reamed, and bored holes. The set spans a diameter range of 0.2515 to 0.5005 inches and carries a plus tolerance of 0.0002 inches (0.0002 mm), conforming to Class ZZ standards for general-purpose inspection work. With 250 individual gages included, this set gives machinists and quality control technicians broad coverage across a commonly used range of hole sizes. It is appropriate for production floor inspection and incoming quality checks where repeatable, traceable measurement is required.

This plug gage set is used in machine shops, manufacturing facilities, and fabrication environments where hole diameter verification is part of standard quality assurance practice. Class ZZ gages are suited for inspection of workpieces where tolerance requirements are moderate rather than precision-critical. The 250-piece count makes this set practical for shops that work across a wide variety of hole sizes without the need to source individual gages separately. The full weight of the set is 22 pounds, reflecting the solid construction across all included pieces.

Key Features

• 250-piece set covering 0.2515 to 0.5005 inches in diameter
• Class ZZ tolerance classification for general-purpose hole inspection
• Plus tolerance of 0.0002 inches (0.0002 mm) per gage
• Broad size range reduces the need for multiple individual gage purchases
• Suitable for production floor and incoming inspection applications

Compatibility

Designed as a general-purpose Class ZZ plug gage set for use in standard go/no-go inspection of machined holes falling within the 0.2515 to 0.5005 inch diameter range.

Installation Notes

Plug gages are handled and used by machinists and quality control inspectors — no power tools or electrical shutoff procedures are required. Gages should be stored clean and dry, away from direct contact with abrasive surfaces, to preserve tolerance integrity. Calibration intervals should follow the facility quality management plan and applicable standards such as ASME B89.1.5. Never force a gage through an undersized hole, as this can damage the gage and compromise its accuracy.