Patriot High Performance Solid Carbide End Mills

All-American Tools Building Back American Manufacturing. Patriot High Performance is the result of a unique development process. KEO engineers and craftsmen, using knowledge and proven solutions learned over decades of success, have brought to the industry a high-performance product.

• Ranging from 0.125”- 1.00” diameters
• Ideal in roughing, profiling, slotting, and finishing applications
• Advanced high wear resistance coating with properties for increased tool life & toughness at high temperatures
• Significantly reduces chatter to improve surface finish & stability in the cut
• Increase material removal rates with increased cutting depth and feed rates

How to Mill like a Boss

How to Mill Like a Boss! Watch the true power of our Patriot High Performance End Mill in this new video with its advanced high wear resistance coating for increased tool life & toughness at high temperatures. CNC Machinists will be thrilled at the longer tool life and resulting improved surface finish. See how it mills Stainless Steel, Steel, and more!

Originally optimized to tackle difficult to machine applications such as in Titanium & pre-hardened steels, this High-Performance End Mill has excelled in a wide array of exotic, alloyed and ferrous part materials. The Patriot family of high-performance end mills is designed with advanced proprietary geometry and thin film coating in order to consistently deliver increased tool life, superior part finish and aggressive material removal rates within machine environments that generate extreme working temperatures.

Browse a selection of our offering below, and click here to see our entire Patriot High Performance Solid Carbide End Mill offering.


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Case Studies

View our case studies below with cost savings created for our customers. The Patriot High Performance End Mill saved money on milling applications on 4340 Steel, SAE 4023, 17-4 PH, cobalt chrome, and more! We’ve saved a Power Train manufacturer up to $68,282 in cutting tool costs annually.

View our case studies below with cost savings created for our customers. The Patriot High Performance End Mill saved money on milling applications on 4340 Steel, SAE 4023, 17-4 PH, cobalt chrome, and more! We've saved a Power Train manufacturer up to $68,282 in cutting tool costs annually.

Limited Time Promotion: Buy Four End Mills Get One Free!


The Patriot High Performance PD1 portfolio of indexable drills excels across a broad spectrum of ISO class workpiece materials when there is a high demand to reduce cost per feature in hole making applications. Our range covers a comprehensive application base providing universal insert geometries and grades, suitable for most applications across all industry segments that focus on hole quality.


Incorporating a wide range of drill lengths and diameters, our Patriot High Performance portfolio of solid carbide drills excels across the broad spectrum of all ISO class workpiece materials, from general steels, cast irons, HSRA, and many more. We offer diameters as small as 0.8 mm (0.0314 inches) and up to 20.0mm (0.7874 inches). CNC Machinists will be thrilled at the longer tool life and close tolerance hole after hole.


The Patriot HP Family of Stealth boring bars contain tunable Internal damping technology that provides optimal dynamic stability and provides significant increases in machining performance. This means that the bars pay for themselves quickly by increasing speed and precision. Additionally, you can leave Stealth Tooling in the machine and use it for deep or shallow bore applications, reducing changeover and setup time.


We are ready to become YOUR COMPLETE TOOL MAKING AUTHORITY™!

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About Us

ARCH Cutting Tools is your complete tool making authority. ARCH does this through blending our customer service associate’s strengths with the commitment of 350,000 square feet of American manufacturing that provides the innovation to support the breadth of in-stock Standards for quick shipment at our all new Midwest campus. It is no coincidence that ARCH leads the industry in custom engineered tooling solutions, it was intentional.

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