Spi 31-384-1 Stainless Steel Angle Gage 25 155 Degree

Product Description

The SPI 31-384-1 is a stainless steel angle gage designed for precise angular measurement in machining, fabrication, and layout work. It carries a 25-degree primary angle and a 155-degree complementary angle, giving technicians two reference surfaces in a single compact tool. The stainless steel construction resists corrosion and wear under shop conditions. At 0.01 pounds, it is lightweight enough for bench use or field layout. Machinists, tool-and-die workers, welders, and fabricators use this type of gage to verify setups, check workpiece angles, and calibrate fixtures without relying on a full protractor set.

This angle gage is suited for metalworking and fabrication environments where quick, repeatable angle verification is required. It is commonly used in machine shops for setting up milling fixtures, checking lathe compound slide angles, and verifying weld joint geometry. The dual-angle design allows a single gage to confirm both the cut angle and its supplement, reducing the number of tools needed at the workstation. It works equally well in light industrial and precision manufacturing settings.

Key Features

• 25-degree primary angle for direct angle reference and setup verification
• 155-degree complementary angle ground into the same gage body
• Stainless steel construction for corrosion resistance and long service life
• Lightweight at 0.01 pounds for easy handling at the bench or in the field
• Single-piece design provides two angular references without additional tools

Compatibility

Designed as a general-purpose precision angle gage for use in metalworking, fabrication, and layout applications requiring 25-degree or 155-degree angular references.

Installation Notes

Angle gages of this type require no installation and are used as hand-held or bench-set reference tools. Keep contact surfaces clean and free of chips or burrs before use to ensure accurate readings. Store in a protective case or dedicated tool drawer to prevent damage to the ground reference faces. Periodic cleaning with a light oil or dry cloth will maintain surface condition and measurement integrity.