5/16" High-Performance .020 Corner Radius TiALN End Mill

This Canadian-made high-performance carbide end mill combines four-flute geometry with a .020" corner radius for added cutting-edge strength and improved corner finishes. Its 4" overall length provides extended reach, while the TiALN coating increases abrasion and heat resistance for demanding machining applications.

Stronger Corners with Chatter-Reducing Geometry

The .020" corner radius reinforces the cutting edge to help reduce chipping and improve tool life compared with a sharp square corner. A special helix design and variable flute pitch help minimize chatter, promote stable cutting and produce consistent finishes during profiling, pocketing and extended-reach milling.

Product Specifications

• Cutting Diameter: 5/16"
• Cutting Diameter Tolerance: +0.0000"/-0.0020"
• Number of Flutes: 4
• Length of Cut: 7/16"
• Overall Length: 4"
• Shank Diameter: 5/16"
• Shank Diameter Tolerance: +0.0000"/-0.0004"
• Shank Style: Round
• End Style: Corner Radius
• Corner Radius: .020"
• End Type: Single End
• Coating: TiALN (Titanium Aluminum Nitride)
• Application: High-Performance Machining
• Helix: Special Helix Design
• Pitch: Variable Pitch
• Carbide Grade: 10% Micro-Grain Carbide
• Made In: Canada

Typical Applications

• Extended-reach milling
• Profiling and shoulder milling
• Pocketing recessed features
• Machining internal corner radii
• Chatter-sensitive finishing

Why Choose Skookum End Mills?

Skookum End Mills are made in Canada from premium micro-grain carbide for consistent performance, dependable accuracy and professional-quality results. Backed by more than 25 years of cutting tool experience, they are built to meet the everyday demands of machinists, fabricators and production shops.