Widin Carbide Corner Radius End Mill is a precision milling tool designed for machinists and production shops that demand clean radii, stable performance, and reliable results when working with tough materials. This 3 mm diameter, 20 mm flute length end mill with a 0.3 mm corner radius combines a long neck and back-draft geometry to deliver consistent cuts in challenging setups.

• Diameter x Cutting Length x Corner Radius: 3 mm diameter with a 20 mm cutting length and a 0.3 mm corner radius for smooth edges and precise radii.
• Flutes: 2 flutes designed for efficient chip evacuation and a clean finish on hard materials.
• Helix Angle: 30° helix to improve chip flow, reduce built-up edge, and maintain stable cutting.
• Center Cutting: Central cutting capability enables plunging, pocketing, and versatile contouring.
• Long Neck & Back Draft: Extended reach with a back-draft geometry that enhances stability, minimizes vibration, and reduces chatter in deep grooves and angled surfaces.
• Material: Ultra-fine grain carbide for high strength and durability under demanding machining conditions.
• Material Compatibility: Suitable for machining high-hardened materials up to HRc70, expanding its use in tough applications.
• Neck Length Adjustability: The design supports effective neck length adjustments based on rake angle, offering flexibility across different milling operations.

This end mill is tailored for precision work where edge quality, repeatability, and tool life matter. The corner radius helps reduce edge wear and deliver smooth finishes on internal corners, while the long neck provides access to deeper pockets and sloped surfaces without compromising rigidity. The combination of center cutting capability, a balanced flute count, and a carefully selected helix angle makes it a versatile choice for die/mold work, automotive components, aerospace hardware, and other applications requiring reliable performance in hard metals.