Mitutoyo 186-906 Radius Gage Set 26 Piece 0.01-0.5 in

Product Description

The MITUTOYO 186-906 is a 26-piece radius gage set designed to measure both convex and concave radii on machined parts, castings, and fabricated components. Each leaf is stainless steel with a satin chrome finish, providing corrosion resistance and long service life in shop environments. The set covers a radius range of 0.01 to 0.5 inches across 26 individual leaves, with an accuracy of 0.0016 inches (0.04 mm). Each leaf carries both a convex and a concave profile, so a single blade checks two radius sizes. Machinists, tool-and-die makers, and quality technicians use this set for quick go/no-go radius verification at the machine or inspection bench.

This radius gage set is suited for production floors, toolrooms, and quality control departments where radius conformance must be verified on finished or in-process parts. Typical applications include checking fillet radii on turned and milled workpieces, inspecting die radii, and verifying radius dimensions on stamped or formed sheet metal. The 26 leaves fan out from a central holder, allowing fast leaf selection. The set ships with a holding case featuring indexed pockets to keep leaves organized and protected during storage and transport.

Key Features

• 26 stainless steel leaves covering 0.01 to 0.5 inches radius range
• Each leaf measures both convex and concave radii, doubling utility per blade
• Accuracy of 0.0016 inches (0.04 mm) for reliable inspection results
• Satin chrome finish resists corrosion and reduces glare during measurement
• Includes holding case with indexed pockets for organized storage
• Compact leaf-style design allows fast radius identification at the workpiece

Compatibility

Designed as a general-purpose radius gage set compatible with standard inspection and machining workflows requiring radius verification from 0.01 to 0.5 inches.

Installation Notes

Radius gages require no installation; they are hand-held inspection tools used by machinists and quality technicians. Fan the leaves carefully when selecting a blade to avoid bending or nicking the profiles. Clean leaves before and after use to remove chips, oils, or coolant residue that could affect measurement accuracy. Store leaves fully closed in the indexed case to protect the precision ground edges.