Starrett 50640 Radius Gage 11/32 Inch Convex Concave

Product Description

The STARRETT 50640 is a single-leaf radius gage designed to measure both convex and concave radii at 11/32 inch (approximately 0.34 inches maximum radius). Manufactured from stainless steel with a satin chrome finish, this gage provides reliable dimensional verification on machined parts, pipe fittings, welds, and formed sheet metal edges. Machinists, pipefitters, and quality-control technicians use it as a quick go/no-go reference tool when checking fillet radii, corner breaks, and curved profiles during fabrication or inspection. The satin chrome finish reduces glare under shop lighting and resists corrosion in typical industrial environments.

This gage is suited for use in machine shops, fabrication facilities, HVAC sheet metal shops, and plumbing trade environments where radius verification is part of quality assurance or fitment confirmation. Its compact, single-leaf form makes it easy to carry in a tool pouch for field or bench use. The 11/32-inch radius size targets a common intermediate measurement range found in standard radius gage sets and filler gage assortments used across light industrial trades.

Key Features

• Measures both convex and concave radii with a single leaf
• Nominal radius: 11/32 inch (0.34 inches maximum)
• Stainless steel construction for durability and corrosion resistance
• Satin chrome finish minimizes glare during inspection
• Compact single-leaf format fits tool pouches and inspection kits

Compatibility

Designed as a standard single-leaf radius gage suitable for use as a standalone inspection tool or as a replacement leaf in compatible STARRETT radius gage sets.

Installation Notes

No installation is required for this hand tool. Clean the gage leaf and the workpiece surface before use to ensure accurate contact. Store the gage away from abrasive materials to preserve the finished edges. Inspection work involving this tool should follow applicable shop quality-control procedures and dimensional tolerancing standards.