Spi 19-162-7 Class Zz Minus Plug Pin Gage 0.162 in

Product Description

The SPI 19-162-7 is a Class ZZ minus plug pin gage designed for dimensional inspection of holes and bores at 0.162 inches in diameter. Built from steel, this single-pin gage is used to verify that a hole meets its lower tolerance boundary — a go/no-go inspection method common in precision machining, quality control, and manufacturing environments. The minus designation means the gage is manufactured to the low side of the tolerance, allowing inspectors to confirm minimum acceptable bore size. Tolerance on this gage is 0.0002 inches, consistent with Class ZZ standards for plain pin gages.

Class ZZ plug gages are widely used in machine shops, production floors, and inspection departments wherever tight hole tolerances must be verified quickly and reliably. This gage is suited for checking drilled, reamed, or bored holes in metal, plastic, and composite workpieces. It is appropriate for incoming inspection, in-process quality checks, and final verification workflows. The 0.162 inch diameter range targets small-bore applications common in precision component manufacturing.

Key Features

• Class ZZ tolerance classification for general-purpose inspection use
• Minus plug configuration checks the low side of hole tolerance
• 0.0002 inch tolerance for reliable dimensional verification
• Steel construction for durability in shop environments
• Single-pin design for fast, straightforward go/no-go checks

Compatibility

Designed as an OEM-style replacement or standard addition for plain plug gage sets used in precision bore inspection of 0.162 inch diameter holes across general manufacturing and quality control applications.

Installation Notes

Plug pin gages are handled and used by machinists, quality technicians, and inspection personnel — no installation in the traditional sense is required. Always clean the gage and the bore being measured before use to prevent false readings caused by debris or cutting fluid. Store the gage in its case when not in use to protect the ground surface from nicks and corrosion. Follow ASME B89.1.5 or applicable gage calibration standards for periodic re-certification.