1/4" 6 Flute Square Chipbreaker ALL4 End Mill

This Canadian-made Skookum End Mill features six flutes, chipbreaker geometry and a square end for controlled material removal in high-temperature alloys and stainless steel. Its ALL4 coating provides exceptional heat, abrasion and wear resistance for demanding machining environments.

Efficient Chip Control for Heat-Intensive Materials

The chipbreaker geometry produces smaller, more manageable chips during roughing, profiling and pocketing operations. Combined with six flutes and the ultra-high-performance ALL4 coating, this end mill provides dependable cutting performance, improved edge protection and excellent resistance to heat and abrasive wear.

Product Specifications

• Diameter: 1/4"
• Flutes: 6
• Length of Cut: 3/8"
• Overall Length: 2"
• Shank: 1/4" Round
• End Style: Square
• Chipbreaker: Yes
• Coating: ALL4 – Aluminum Chromium Titanium Nitride
• Application: High-Temperature Alloys and Stainless Steel
• Series: 680
• Length Designation: Stub
• Class: Orange
• Made In: Canada

Typical Applications

• Roughing high-temperature alloys and stainless steel
• Profiling and pocketing operations
• Applications requiring improved chip control
• Heat-intensive and abrasive machining conditions
• Producing square shoulders and flat-bottomed features

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.