Spi 29-182-3 Class Zz Plus Plug Gage 0.182 in Dia

Product Description

The SPI 29-182-3 is a Class ZZ Plus plug gage designed for precision go/no-go measurement of hole diameters at 0.182 inches. It holds a tolerance of 0.0002 inches, meeting Class ZZ Plus accuracy standards used in quality control and inspection environments. Constructed from steel, this gage delivers the dimensional stability required for reliable, repeatable measurement. Machinists, toolroom technicians, and quality inspectors use plug gages like this one to verify that drilled, reamed, or bored holes fall within specified tolerance limits before parts advance through production.

This plug gage is suited for shop floor and toolroom inspection of small-diameter holes in machined components. It is appropriate for both production inspection and incoming material verification. The 0.182-inch diameter makes it a practical choice for checking holes produced by standard drill sizes in that range. It is typically used in metalworking, precision manufacturing, and general machining environments where hole size conformance must be confirmed before assembly.

Key Features

• Class ZZ Plus accuracy with 0.0002-inch tolerance for precise hole inspection
• 0.182-inch nominal diameter targets a common small-bore machining dimension
• Steel construction provides durability and dimensional stability under shop conditions
• Compact and lightweight at 0.2 pounds for easy handheld use
• Go/no-go style gage speeds up pass-fail inspection decisions on the shop floor

Compatibility

Designed as an OEM-style plug gage for use wherever Class ZZ Plus tolerance standards are required for 0.182-inch diameter hole inspection.

Installation Notes

Plug gages should be handled and stored carefully to prevent damage to the precision ground surfaces. Clean the gage and the hole being measured before use to avoid false readings caused by chips or debris. Do not force the gage into an undersized hole, as this can damage the gage and alter its calibration. Periodic recalibration against traceable standards is recommended to maintain measurement integrity over time.