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The SPI 30-729-8 is a 5/32-inch radius gage used to measure and verify concave and convex radii on machined parts, weld profiles, and fabricated components. Finished in satin chrome, the steel construction resists corrosion and reduces glare during inspection. At 0.01 pounds, the gage is a lightweight, handheld tool sized for precise fitment checks in tight spaces. Machinists, fabricators, and quality control technicians use this type of gage when verifying that a radius matches a specified dimension before or after machining operations.
This radius gage suits general metalworking and fabrication inspection tasks in both shop and field environments. It is appropriate for checking fillets, grooves, and rounded edges where a 5/32-inch radius is the target specification. The compact size makes it practical for use directly at a machine or workbench without additional fixturing.
Designed for general-purpose radius inspection on machined, welded, or fabricated components where a 5/32-inch radius dimension must be confirmed.
No installation is required for this inspection gage. Ensure the workpiece surface is clean and free of burrs or debris before taking a measurement to avoid false readings. This tool is used by machinists, fabricators, and QC inspectors and requires no special calibration equipment for routine fitment checks. Store in a dry location to preserve the finish and dimensional accuracy.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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