Spi 19-716-0 Class Zz Minus Plug Pin Gage 0.716 in

Product Description

The SPI 19-716-0 is a Class ZZ minus plug pin gage machined from steel, designed to verify bore and hole dimensions with high repeatability. It measures a nominal diameter of 0.716 inches with a minus tolerance of 0.0002 inches, conforming to Class ZZ go/no-go gage standards. This tool is used by machinists, quality control inspectors, and tool-and-die technicians to check that drilled, reamed, or bored holes fall within specified dimensional limits. The steel construction provides durability under regular shop-floor use. Weighing 0.2 pounds, it is lightweight and easy to handle during inspection routines.

Plug pin gages of this class are commonly used in manufacturing, machining, and fabrication environments where hole diameter verification is part of incoming inspection, in-process quality control, or final part acceptance. The 0.716-inch diameter makes it applicable to a range of drilled or reamed hole sizes in both ferrous and non-ferrous workpieces. This gage is suited for tool rooms, machine shops, and quality labs where consistent dimensional verification is required.

Key Features

• Class ZZ minus tolerance of 0.0002 inches for reliable go/no-go hole inspection
• 0.716-inch nominal measurement diameter
• Steel construction for shop-floor durability and dimensional stability
• Lightweight at 0.2 pounds for easy single-handed use during inspection
• Sold individually, no minimum order required beyond single unit

Compatibility

Designed as an OEM-style Class ZZ plug gage for use in standard go/no-go gage handle sets accepting 0.716-inch diameter pin gages.

Installation Notes

Plug pin gages are installed and used by machinists or quality control technicians without special tools. Before use, clean both the gage pin and the hole being measured to remove chips, oil, and debris that could affect accuracy. Do not force the pin into an undersized hole, as this can damage the gage pin surface and compromise calibration. Store pin gages in a protective case away from heat sources and other metal tooling to prevent corrosion and surface wear.