Spi 29-063-5 Class Zz Plus Plug Gage 0.063 in

Product Description

The SPI 29-063-5 is a Class ZZ Plus plug gage designed to verify bore and hole diameters to a nominal size of 0.063 inches with a tolerance of 0.0002 inches. This precision measuring tool is used to confirm whether a machined or drilled hole falls within acceptable dimensional limits. Constructed from steel, it provides the hardness and wear resistance needed for repeated use in production or inspection environments. Machinists, quality control technicians, and tool-and-die professionals rely on plug gages like this one to maintain tight dimensional control on small-diameter features.

The 29-063-5 is suited for inspection of small-bore holes in machined components, stamped parts, and precision assemblies where dimensional verification at the 0.063-inch range is required. It is appropriate for both production-floor spot-checking and inspection-room use. The Class ZZ Plus designation places this gage in the working-gage category, making it a practical choice for routine go/no-go dimensional verification on the shop floor or at a quality inspection station.

Key Features

• Nominal measurement diameter of 0.063 inches for small-bore inspection
• Class ZZ Plus tolerance rating of 0.0002 inches for working-gage applications
• Steel construction for durability and wear resistance under repeated use
• Compact, single-piece form suited for handheld inspection use
• Package quantity of 1 — individual gage sold per unit

Compatibility

Designed as a working plug gage for inspection of holes and bores at the 0.063-inch nominal diameter. Compatible with standard gage handle holders sized for small-diameter plug gage blanks.

Installation Notes

Plug gages should be handled with clean, dry hands or lint-free gloves to prevent corrosion from skin oils. Store the gage in its case or on a padded surface away from other metal tools to avoid contact damage to the gaging surface. Calibration should be verified against a reference master at regular intervals per your facility quality plan. Do not force the gage into a hole — apply light, consistent hand pressure only.