Spi 19-202-1 Class Zz Minus Plug Pin Gage 0.202 in

Product Description

The SPI 19-202-1 is a Class ZZ minus plug pin gage ground to a 0.202-inch nominal diameter with a minus tolerance of 0.0002 inches. Plug pin gages are precision hand tools used to verify bore diameters and hole sizes by checking whether a machined opening accepts or rejects the gage. The Class ZZ designation indicates a working-grade tolerance appropriate for general shop-floor inspection and production quality control. Constructed from steel, this gage provides the wear resistance and dimensional stability required for repetitive measurement tasks in manufacturing and machining environments. Machinists, quality control technicians, and tool-and-die professionals are the primary users.

This gage is suited for inspection applications where verifying a 0.202-inch bore to a tight tolerance is required. Typical use cases include checking drilled, reamed, or punched holes in metal or plastic components on production lines or in job-shop environments. The minus tolerance means the gage is ground below nominal, making it a go-gage for confirming minimum acceptable hole size. It is well-suited for facilities following standard GO/NO-GO inspection protocols.

Key Features

• Class ZZ working-grade tolerance for general production inspection
• Minus tolerance ground 0.0002 inches below nominal diameter
• 0.202-inch nominal diameter for precise bore verification
• Steel construction for durability and dimensional stability under repeated use
• Compact, single-piece plug design for fast GO/NO-GO checks

Compatibility

Designed as a working-grade plug pin gage for standard GO/NO-GO inspection of 0.202-inch nominal diameter bores in general machining and manufacturing quality control applications.

Installation Notes

Plug pin gages are hand-held inspection tools and require no installation. Handle with clean, dry hands or lint-free gloves to prevent corrosion from skin oils and to maintain measurement accuracy. Store in a protective case away from temperature extremes and other tools that could cause nicks or surface damage. Calibrate and re-check gage dimensions periodically per your facility quality system requirements to confirm the gage remains within tolerance.