Keo® Cobalt Single Flute Countersinks Are Precision-Ground Tools Engineered For Producing Smooth, Chatter-Free Chamfers And Countersinks In A Wide Variety Of Materials. Constructed From Premium Cobalt High-Speed Steel (M42), These Countersinks Offer Superior Heat And Wear Resistance, Making Them Ideal For Cutting Tough Alloys, Stainless Steels, Titanium, And Cast Iron. The Single-Flute Design Provides A Highly Positive Rake Angle For Clean, Concentric Cutting And Reduced Chatter—Especially Useful In Portable Or Less-Rigid Setups. The Result Is A Precise, Smooth Surface Finish And Improved Tool Life.

• Material: Premium cobalt steel for exceptional heat and wear resistance.Design: Single flute construction ensures smooth, chatter-free operation.
• Precision Cutting: Designed for precise, concentric countersinking and deburring.
• Versatile Use: Ideal for machining carbon steels, alloys, stainless steel, and other tough materials.
• Finish: Polished surface enhances chip evacuation and reduces buildup.
• Durability: Superior hardness extends tool life, even under high cutting temperatures.
• Applications: Perfect for countersinking holes for flat-head screws and removing burrs.
• Made in USA: Manufactured to exacting standards for consistent performance.
• AlTiN (Aluminum Titanium Nitride) coated which provide exceptional heat resistance, hardness, and oxidation protection. Ideal for high-speed or dry machining, this coating extends tool life and enhances performance when cutting hard or abrasive materials like stainless steel and titanium.
• This photo of this item only REPRESENTS this tool, please read the items specifics for detailed information.

This item is part of our complete offering of ARCH Cutting Tools, trusted for high-performance CNC machining across drilling, milling, holemaking, and indexable applications. Explore Patriot HP Cutting Tools for advanced solid carbide and high-performance machining solutions, KEO Cutting Tools for precision countersinks, center drills, and holemaking tools, Ultra-Dex Cutting Tools for productive indexable milling, drilling, and insert-based machining, and Revere Cutting Tools for high-performance carbide end mills and milling solutions. Visit our main ARCH Cutting Tools page to compare tool styles, coatings, geometries, and performance options to find the right solution for your application.