Spi 29-206-0 Class Zz Plus Plug Gage 0.206 in Dia

Product Description

The SPI 29-206-0 is a Class ZZ Plus plug gage used to verify bore and hole diameters to a nominal size of 0.206 inches with a tolerance of 0.0002 inches. Plug gages of this class are go/no-go inspection tools used on the shop floor and in quality-control environments to confirm that machined holes fall within specified dimensional limits. The steel construction provides durability under repeated use. This gage is suited for machinists, toolmakers, and quality inspectors working in precision manufacturing, metalworking, and close-tolerance fabrication environments.

Class ZZ Plus plug gages are typically applied in inspection of drilled, reamed, or bored holes in production machining operations. They are commonly used in light manufacturing, job shops, and tool-and-die settings where consistent hole-size verification is required. This gage covers a 0.206-inch nominal diameter, making it appropriate for small-bore inspection tasks where dimensional accuracy at the tenths level is required.

Key Features

• Class ZZ Plus tolerance grade for small-bore dimensional inspection
• 0.206-inch nominal measurement diameter
• 0.0002-inch tolerance for precise go/no-go verification
• Steel construction for wear resistance and long service life
• Compact form factor suited for bench or floor inspection use

Compatibility

Designed as a standard go/no-go inspection gage for machined holes and bores with a nominal diameter of 0.206 inches in precision manufacturing and metalworking applications.

Installation Notes

Plug gages are handled and used by machinists, quality technicians, and tool-and-die professionals. Store the gage in a clean, dry case away from other tooling to prevent contact damage to the gage surface. Handle with clean cotton gloves when possible to avoid corrosion from skin oils. Verify calibration status before use in critical inspection applications, and follow shop metrology procedures for periodic recalibration.