The Widin Carbide Corner Radius End Mill is a high-precision cutting tool designed for machining hard materials with reliable, repeatable corner radii. With a compact 4 mm diameter and a 1.0 mm corner radius, it’s tailored for deep grooves and tight pockets when accuracy matters.

• Diameter: 4 mm
• Corner radius: R1.0 (1.0 mm)
• Flutes: 2-flute design for efficient chip evacuation and smooth finishes
• Shank: Long shank enables deep groove, pocket, and recessed feature access
• Material: Carbide cutting edge for outstanding hardness and wear resistance
• Cutting geometry: High-strength R-shaped edge optimized for hard-to-machine materials
• Application: Ideal for high-hardness workpieces like hardened steels and tough alloys

Designed for machinists who need precise radii in deep features, this end mill delivers consistent results across repetitive passes and extended cutting cycles. The long shank provides the reach required for deep slots and complex contours, reducing the need for tool changes and additional setups. The 2-flute configuration promotes efficient chip clearance and favorable chip thinning, which helps maintain a clean finish on hard materials while managing heat buildup. Whether you’re working in mold making, aerospace components, or automotive prototyping, this tool helps you achieve accurate radii, smooth surfaces, and reliable tool life—even in demanding applications.