Mitutoyo 186-101 Radius Gage Set 30 Piece Stainless Steel

Product Description

The MITUTOYO 186-101 is a 30-piece radius gage set designed for measuring concave and convex radii on machined parts, castings, and fabricated components. Built from stainless steel, the blades resist corrosion and maintain dimensional stability in shop environments. The set covers a radius range of 1/32 inch to 1/4 inch with a graduation of 1/64 inch and an accuracy of 0.002 inch. A locking clamp holds the selected blade in position during use. This set is appropriate for machinists, tool and die makers, quality control technicians, and fabricators who need reliable radius verification in production and inspection settings.

The 186-101 is suited for use in machine shops, fabrication facilities, and quality inspection areas. It handles both concave and convex radius checks, making it practical for verifying fillets, corner radii, and mating surfaces on parts across a range of industries. The 30 blades cover 15 concave and 15 convex radii including 1/32, 1/16, 3/64, 1/8, 5/64, 3/32, 7/64, 5/32, 9/64, 11/64, 3/16, 13/64, 7/32, 15/64, and 1/4 inch. The Style B configuration groups blades in a compact fanned holder for quick access on the shop floor.

Key Features

• 30-piece set includes 15 concave and 15 convex radius blades
• Radius range: 1/32 inch to 1/4 inch with 1/64 inch graduation
• Accuracy of 0.002 inch for reliable dimensional verification
• Stainless steel construction resists corrosion and wear
• Includes locking clamp to secure selected blade during measurement
• Style B fanned holder for organized, quick blade selection

Compatibility

Designed as a general-purpose radius gage set for use in machine shop, fabrication, and quality inspection applications requiring fractional inch radius measurement in the 1/32 inch to 1/4 inch range.

Installation Notes

No installation is required for this hand tool. Before use, clean blade edges and the part surface to remove chips, oil, or debris that could affect measurement accuracy. Select the appropriate blade, secure it with the locking clamp, and hold it against the workpiece radius under adequate lighting to assess the fit. Handle blades carefully to avoid nicking the profiled edges, which would compromise measurement integrity.