Widin Carbide Corner Radius End Mill is a precision cutting tool designed for micro-milling and high-hardness materials. Built for engineers, machinists, and serious hobbyists, it delivers clean edges, stable performance, and reliable durability in tight slots and deep features.

• Diameter: 0.4 mm cutting diameter for defining micro-features with exceptional precision
• Flutes: 2 flutes optimized for efficient chip evacuation and smooth cutting
• Helix: 30° helix to balance cutting action with predictable finishes and tool life
• Corner Radius: R0.05 corner radius creates smooth edges and reduces wear on sharp corners
• Material: Ultra-fine grain carbide delivering high hardness and long-lasting durability, capable of machining materials up to HRc70
• Neck Design: Long neck with back draft geometry for enhanced stability, reducing vibration in deep slots and angled surfaces
• Center Cutting: Center-cutting capability enables plunging, pocketing, and versatile milling operations
• Adjustable Neck Length: Neck length considerations can be effectively tuned based on rake angle for different operations
• Applications: Ideal for micro-milling, precise slots, micro-molds, and machining high-hardness steels with tight tolerances

This end mill focuses on real-world performance: tight tolerances, clean corners, and dependable versatility. The combination of a small 0.4 mm diameter, two flutes, and a 30° helix supports precise material removal with efficient chip control, while the long-neck back draft design minimizes chatter during deep-pocket cuts. The R0.05 corner radius helps reduce stress concentrations, contributing to longer tool life when working with hard alloys. Whether you’re shaping micro features in aerospace components, precision molds, or medical device housings, this tool is built to deliver consistent results with minimal setup fuss.