Spi 31-391-6 Stainless Steel Angle Gage 60 120 Degree

Product Description

The SPI 31-391-6 is a stainless steel angle gage designed for precise angular measurement in fabrication, machining, and layout work. It features a 60-degree primary angle and a 120-degree complementary angle, giving the technician two reference surfaces in a single compact tool. Constructed from stainless steel, it resists corrosion and maintains dimensional stability under shop conditions. At 0.02 pounds, the gage is lightweight and easy to handle during close-tolerance layout or inspection tasks. Machinists, pipefitters, and fabricators use it to verify and transfer angles quickly without the need for a protractor or separate setup tools.

This angle gage is suited for use in machine shops, fabrication shops, and mechanical service environments where consistent angular reference is required. It is appropriate for both bench work and in-place verification on assembled components. The 60-degree primary angle is a common reference in pipe fitting, gear layout, and structural fabrication. The corresponding 120-degree complementary face extends its utility to obtuse-angle layout and inspection without flipping the workpiece.

Key Features

• 60-degree primary angle for common layout and inspection applications
• 120-degree complementary angle provides a second reference surface on the same tool
• Stainless steel construction resists corrosion and maintains accuracy in shop environments
• Lightweight at 0.02 pounds for easy single-hand use
• Compact form factor suits both bench inspection and field layout tasks

Compatibility

Designed as a general-purpose angle gage for use in machining, fabrication, and mechanical layout applications requiring 60-degree or 120-degree angular reference.

Installation Notes

This tool requires no installation. Clean the reference surfaces of both the gage and the workpiece before use to ensure accurate contact. Handle stainless steel gages with care to avoid nicks or burrs on the reference faces, as surface damage will affect measurement accuracy. Store the gage in a dry location away from abrasive materials to preserve its edges.