Spi 30-723-1 Radius Gage 1/16 Inch Convex Concave

Product Description

The SPI 30-723-1 is a single-leaf radius gage designed to measure both convex and concave radii of 1/16 inch (0.0625 inch nominal). Each leaf provides dual-function measurement in a compact, satin chrome finished steel body. With an accuracy rating of 0.0012 inch, this gage delivers reliable profile verification for precision fitting, machining, and fabrication tasks. The satin chrome finish reduces glare during inspection and resists surface corrosion. Machinists, pipefitters, and fabricators use leaf-style radius gages to quickly confirm weld prep profiles, fillet radii, and mating surface contours without additional instrumentation.

This radius gage is suited for trade and industrial applications where consistent radius verification is required at the bench or in the field. Typical use cases include confirming fillet weld radii on pipe and structural work, checking tooling profiles in machining setups, and verifying formed sheet metal edges. The single-leaf format makes it easy to slot into a standard radius gage set or use as a standalone replacement leaf.

Key Features

• Measures both convex and concave radii from a single leaf
• Nominal radius: 1/16 inch (0.0625 inch)
• Accuracy: 0.0012 inch
• Satin chrome finish reduces glare and resists corrosion
• Steel construction for durability in shop and field environments
• Compact, lightweight design at 0.01 pounds

Compatibility

Designed as a standard single-leaf radius gage for use in general machining, fabrication, and inspection applications requiring 1/16 inch radius measurement.

Installation Notes

Radius gages require no installation and are hand-held inspection tools. Store leaves flat and avoid dropping to prevent profile distortion. Clean the gage leaf before each use to ensure accurate contact with the workpiece surface. Periodic comparison against a calibrated reference standard is recommended to confirm continued accuracy.