Spi 29-183-1 Class Zz Plus Plug Gage 0.183 in

Product Description

The SPI 29-183-1 is a Class ZZ Plus plug gage designed for precision go/no-go inspection of drilled, reamed, or bored holes at a nominal diameter of 0.183 inches. Built from steel, it holds a tolerance of 0.0002 inches, which meets Class ZZ Plus specifications for production-level inspection tasks. Machinists, quality technicians, and tool-and-die professionals use this gage to verify hole size conformance quickly and without complex setup. Its compact size and straightforward operation make it a standard addition to any shop-floor or inspection-room gage kit.

This plug gage is suited for use in machine shops, manufacturing facilities, and precision fabrication environments where tight hole tolerances must be verified at the point of production or during incoming/outgoing inspection. It is appropriate for inspecting steel, aluminum, plastic, and other machinable workpieces where a 0.183-inch nominal bore diameter is the target dimension. Quality inspectors and CNC machinists routinely use Class ZZ gages for high-volume production checks where repeatability and ease of use are priorities.

Key Features

• Class ZZ Plus tolerance rating at 0.0002 inches for reliable go/no-go inspection
• Nominal measurement diameter of 0.183 inches for precise bore verification
• Steel construction for durability and dimensional stability under shop conditions
• Compact single-piece design requiring no additional tooling or setup for use
• Suitable for production inspection, receiving inspection, and in-process quality checks

Compatibility

Designed as an OEM-style inspection tool for any application requiring go/no-go hole verification at a nominal diameter of 0.183 inches in conformance with Class ZZ Plus gage tolerancing standards.

Installation Notes

Plug gages are handled by quality technicians and machinists and require no permanent installation. Keep the gage clean and lightly oiled when stored to prevent corrosion on the steel working surface. Do not force the gage into a hole; excessive insertion force can damage both the gage and the workpiece. Calibration intervals should follow your facility's gage control program in accordance with applicable ISO or ANSI metrology standards.