1/4" Four-Flute ALL4 Square End Mill

This Canadian-made 1/4" carbide end mill features four flutes and a square cutting end for accurate profiling, pocketing and shoulder milling. Its ALL4 coating provides excellent resistance to heat, abrasion and wear when machining high-temperature alloys and stainless steel.

Reliable Performance in Heat-Intensive Materials

The four-flute geometry provides excellent stability, efficient material removal and a smooth surface finish. Its stub-length construction increases rigidity, while the square end produces flat-bottomed cuts and precise shoulders in demanding machining applications.

Product Specifications

• Application: High-Temperature Alloys and Stainless Steel (HTAS)
• Series: 580
• Cutting Diameter: 1/4"
• Flute Count: 4
• Length of Cut: 3/8"
• Overall Length: 2"
• Length Designation: Stub Length
• Shank Diameter: 1/4"
• Shank Style: Round
• End Style: Square
• Cutting Ends: Single End
• Coating: ALL4 (Aluminum Chromium Titanium Nitride)
• Class: Orange
• Material: Solid Carbide
• Product Code: 4324034
• Made In: Canada

Typical Applications

• Machining high-temperature alloys and stainless steel
• Profiling and shoulder milling
• Pocketing and flat-bottomed cuts
• High-speed and heat-intensive machining
• Production work requiring stability and wear resistance

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.