Spi 31-383-3 Stainless Steel Angle Gage 20 160 Degree

Product Description

The SPI 31-383-3 is a stainless steel angle gage designed for precision angle measurement and layout work in machining, fabrication, and inspection applications. It features a 20-degree primary angle and a 160-degree complementary angle, giving machinists and toolmakers two reference surfaces in a single compact gage. The stainless steel construction resists corrosion and wear, making it suitable for use in shop environments where durability and dimensional stability are required. At 0.01 pounds, this is a lightweight, hand-held reference tool intended for direct comparison and transfer of angles to workpieces or fixtures.

This angle gage is used in machine shops, tool rooms, and fabrication facilities for setting and verifying fixed angles on milling machines, surface grinders, and inspection setups. It is appropriate for both production and quality control environments where repeatable angle reference is needed. Machinists, tool and die makers, and quality inspectors are the primary users of this type of gage.

Key Features

• 20-degree primary angle for direct layout and setup reference
• 160-degree complementary angle provides a second usable reference surface
• Stainless steel construction for corrosion resistance and long service life
• Lightweight at 0.01 pounds for easy handling and bench use
• Single-piece design with no moving parts reduces wear and calibration drift

Compatibility

Designed as a fixed-reference angle gage for use in machine shop and inspection applications requiring a 20-degree or 160-degree angle standard.

Installation Notes

No installation is required for this hand-held reference tool. Clean contact surfaces on both the gage and the workpiece before use to ensure accurate angle transfer. Store in a protective case or dedicated gage block set to prevent surface damage that could affect measurement accuracy.