Mitutoyo 186-902, Radius Gage Set, 26 Leaves, 0.5mm to 13mm by 0.5mm, 5 Radii per Leaf

Description

Product Overview

The Mitutoyo 186‑902 Radius Gage Set is a precision instrument engineered for professionals who demand exacting control over radius measurements. Comprising 26 interchangeable leaves, the set spans a measurement range from 0.5 mm to 13 mm, with each leaf featuring five distinct radii—both concave and convex—allowing users to select the optimal curvature for a given part. Constructed from high‑grade Japanese steel, each leaf offers exceptional wear resistance and maintains its calibrated shape even after extensive use. The leaves are housed in a sturdy plastic pouch that protects the components from dust, impact, and moisture, ensuring longevity and consistent performance. Detailed specifications include a compact footprint of 1.18 × 0.79 × 3.94 inches and a lightweight design at just 3.53 ounces, making the set easy to transport and handle on the shop floor. The product is not discontinued, reflecting Mitutoyo’s ongoing commitment to quality and support. With a best‑seller rank of #59 in Radius Gauges, this set is trusted by manufacturers, toolmakers, and quality‑control engineers worldwide.

Usage

Designed for a broad spectrum of industrial applications, the Mitutoyo Radius Gage Set excels in environments where precise radius verification is critical. In machining workshops, technicians use the leaves to check the curvature of machined parts such as shafts, cams, and valve components, ensuring that tolerances are met before assembly. Inspection stations benefit from the quick‑change leaf system, allowing inspectors to rapidly switch between radii without recalibrating tools, thereby reducing downtime and increasing throughput. The set is also valuable in research and development labs where prototype parts often require iterative radius adjustments; the five radii per leaf provide flexibility to evaluate multiple design variations efficiently. Additionally, the compact pouch makes the set ideal for field service engineers who need portable, reliable measurement tools for on‑site repairs and maintenance of equipment that incorporates curved surfaces. Whether used on a benchtop, in a cleanroom, or aboard a mobile service vehicle, the set delivers consistent, repeatable results that support high‑quality production standards.

Why Choose Us

Choosing the Mitutoyo 186‑902 Radius Gage Set means selecting a product backed by decades of metrological expertise and a reputation for durability. Mitutoyo’s manufacturing processes adhere to strict ISO standards, guaranteeing that each leaf meets exacting dimensional tolerances. The set’s Japanese‑origin steel is heat‑treated to achieve a hardness that resists deformation, providing confidence that measurements remain accurate over the tool’s lifespan. Our after‑sales support includes technical assistance, calibration services, and a responsive customer service team ready to address any inquiries. Because the set is supplied in a reusable plastic pouch, you receive a complete, organized solution that minimizes the risk of lost components and simplifies storage. Moreover, the product’s design emphasizes ergonomics; the leaves are thin enough to fit into tight spaces yet robust enough to withstand repeated handling. By investing in this gauge set, you gain a reliable, cost‑effective tool that reduces scrap, improves first‑pass yield, and enhances overall product quality.

Key Features

• Twenty‑six interchangeable leaves cover a wide radius range, eliminating the need for multiple separate gauges.
• Five concave and convex radii per leaf provide versatile measurement options for complex part geometries.
• High‑quality Japanese steel construction ensures long‑term wear resistance and dimensional stability.
• Compact plastic pouch keeps the set organized, protects against damage, and simplifies transport.
• Dedicated customer support and calibration services guarantee continued accuracy and peace of mind.

FAQ

What materials can the radius gage set measure?

The set is suitable for measuring radii on metal components such as steel, aluminum, brass, and copper, as well as on hardened plastics and composite materials, provided the surface is clean and free of debris.

How do I maintain the accuracy of the leaves?

Regularly clean each leaf with a lint‑free cloth and mild solvent to remove oil or particles. Store the leaves in the supplied pouch when not in use, and avoid exposing them to extreme temperatures or corrosive environments. Periodic calibration by a certified metrology service will ensure continued precision.

Can the set be used for both internal and external radii?

Yes. Each leaf includes both concave (internal) and convex (external) radius profiles, allowing you to verify the curvature of holes, slots, and protruding features with the same tool.

Is the set compatible with other Mitutoyo gauge accessories?

The leaves are designed to fit standard Mitutoyo gauge holders and can be integrated with existing measurement stations that support interchangeable radius leaves, providing seamless compatibility across your tool inventory.

What warranty does Mitutoyo provide?

Mitutoyo offers a limited one‑year warranty covering manufacturing defects. This warranty includes repair or replacement of defective leaves, and you can contact our support team for assistance with warranty claims.