The Widin Carbide Corner Radius End Mill is a precision cutting tool designed for aluminum and non-ferrous metals. With a 12 mm diameter, a 4.0 mm corner radius, a 3-flute geometry, and a 45° helix, it delivers reliable contouring and a clean surface finish across challenging profiles.

• Diameter: 12 mm
• Corner radius: R4.0 (4.0 mm) for smooth contours and reduced edge chipping
• Flute count: 3-flute design for efficient material removal
• Helix angle: 45° for strong shearing action and clean cuts
• Material: Carbide construction for durability and wear resistance
• Material compatibility: Optimized for aluminium and non-ferrous metals
• Chip evacuation & finish: Geometry promotes efficient chip flow, minimizing built-up edge and improving surface finish

Designed for precision aluminum machining, this end mill delivers consistent results across pockets, profiles, and contouring tasks. The corner radius enables smooth radii with reduced risk of chipping on sharp corners. The 3-flute geometry balances aggressive material removal with a refined finish, especially at practical feeds and speeds. Carbide’s hardness provides long tool life and reliable wear resistance in non-ferrous alloys, while efficient chip evacuation helps manage heat for a better surface quality. This tool is well-suited for applications like creating radii on aluminum brackets, machine housings, enclosures, and prototype parts where precise contours matter. Practical tips: use appropriate coolant, start with moderate speeds, ensure solid workholding, and prefer climb milling to improve finish and control chips.