Value Collection 616-81716 Class Zz Plug Gage Set 84 Pc

Product Description

The VALUE COLLECTION 616-81716 is a Class ZZ plug gage set designed for go/no-go dimensional inspection of drilled, bored, and reamed holes. The set covers a measurement range of 0.917 inches to 1.000 inch with a minus tolerance of 0.0002 inches (0.0002 mm), making it suited for general-purpose production inspection where tight but not ultra-precision tolerances are required. Class ZZ is the standard grade for workshop and incoming inspection use. The 84-piece set provides coverage across the full stated range so machinists and quality technicians can verify hole diameter without switching to separate individual plug gages. Total set weight is 40 pounds.

This plug gage set is used in machine shops, manufacturing facilities, and quality control departments for inspecting hole diameters on machined parts. Typical applications include verifying toleranced bores on castings, weldments, and fabricated components during in-process or final inspection. The Class ZZ designation makes this set appropriate for production floor use rather than laboratory-grade metrology. Quality technicians, machinists, and inspection personnel are the primary users of this type of tooling.

Key Features

• Class ZZ tolerance grade suitable for general production and incoming inspection
• Covers 0.917 inches to 1.000 inch diameter range in a single set
• Minus tolerance type at 0.0002 inches per gage for consistent go/no-go inspection
• 84-piece set reduces the need for individually sourced plug gages across this range

Compatibility

Designed for general-purpose go/no-go hole inspection of machined bores falling within the 0.917 inch to 1.000 inch diameter range. Compatible with standard gage handle holders sized for plug gages in this diameter class.

Installation Notes

Plug gages are used by quality technicians and machinists and require no installation in the conventional sense, but proper handling is critical. Store gages in the provided case and keep them clean and lightly oiled to prevent corrosion and wear. Do not force a plug gage into an undersize hole, as this can damage the gage or alter its calibration. Periodically verify gage accuracy against a calibrated master ring gage or send gages out for recalibration per your shop quality plan.