The Widin Carbide Corner Radius End Mill is a precision, two-flute tool designed for machinists working with high-hardness materials. Built as a stub-cut end mill, it delivers rigid performance and clean, accurate corners for pockets, slots, and profiles.

• Diameter: 4 mm
• Flute count & length: 2-flute, stub-cut end mill for rigid, precise cutting
• Cutting length: 20 mm
• Corner radius: R0.3 mm
• Material: Solid carbide for superior hardness resistance and consistent performance
• Designation: Corner radius end mill optimized for high-hardness workpieces
• Applications: Ideal for hardened steels, stainless steels, and other difficult metals requiring accurate corners and smooth finishes

This end mill is designed to address real-world machining needs: delivering accurate corner radii, maintaining dimensional integrity in tough materials, and offering a compact, stable cutting geometry that reduces deflection at typical feed rates. The R0.3 mm corner radius provides a balance between strength and detail, enabling clean radii in slots and pockets while helping to minimize stress concentrations. Whether you’re profiling, finishing shoulders, or refining tight contours, this tool supports reliable, repeatable results with a straightforward setup.