Spi 616-62052 Class Zz Plug Gage Set 101 Pc 0.1575-0.1969 in

Product Description

The SPI 616-62052 is a 101-piece Class ZZ double-end plug gage set used for go/no-go inspection of hole diameters ranging from 0.1575 inches to 0.1969 inches (4.000 mm to 5.00 mm). Each gage member is manufactured from steel and held to a bilateral tolerance of plus or minus 0.002000 inches, meeting Class ZZ standards for general inspection work. The double-end design places the go member on one end and the no-go member on the opposite end, eliminating the need to swap tools during inspection. Machinists, quality control technicians, and toolroom personnel use this set to verify drilled, reamed, or bored hole dimensions quickly and accurately.

This set is suited for production floor and toolroom use in manufacturing environments where hole diameter verification is part of standard quality control workflow. The 101-piece range gives inspectors comprehensive coverage across the 0.1575 inch to 0.1969 inch size band without requiring individual gages to be ordered separately. The steel construction stands up to repeated use on metal workpieces. This set is appropriate for both incoming inspection and in-process checking on machined components.

Key Features

• 101-piece set covering 0.1575 to 0.1969 inches (4.000 to 5.00 mm) diameter range
• Class ZZ tolerance class with plus or minus 0.002000 inch bilateral tolerance
• Double-end design combines go and no-go members in a single gage body
• Steel construction for durability in production and toolroom environments
• Set format provides incremental size coverage without individual ordering

Compatibility

Designed for general-purpose go/no-go hole inspection on machined components requiring diameter verification in the 0.1575 to 0.1969 inch range. Class ZZ designation applies to standard commercial inspection tolerances.

Installation Notes

Plug gages are handled by quality control technicians and machinists trained in dimensional inspection. Keep gage members clean and lightly oiled when not in use to prevent corrosion on the steel surfaces. Never force a gage member into a hole; the go member should pass with light hand pressure and the no-go member should not enter. Store the set in its case to protect gage surfaces and maintain calibration integrity.