POWERTEC 4PK CNC Aluminum Cutting End Mill – 4mm Single Flute Carbide Bit, 12mm Cut Length, 4mm Shank, High Chip Evacuation Router Bit for Soft Metals, Wood & Plastics (73072)

<h2><span class="a-text-bold">POWERTEC 73072 CNC Single Flute Solid Carbide End Mill set</span></h2> <p>It is built for precision machining of aluminum alloys, copper, plastics, wood, and composite materials.</p> <p>Featuring a single-flute up-cut spiral design, these end mills maximize chip evacuation while minimizing cutting resistance and heat generation—especially important when working with soft or non-ferrous materials.</p> <p>Each bit is crafted from premium tungsten carbide for high rigidity and stable cutting performance, with an uncoated cutting edge that delivers sharp, efficient cuts across a wide range of applications.</p> <p>With a standard 4mm shank and a balanced 12mm cutting length, this 4-pack is ideal for CNC routers, engraving machines, and workshop setups requiring consistent, repeatable results.</p>

• SINGLE FLUTE DESIGN FOR CLEAN ALUMINUM CUTTING: The single-flute, up-cut spiral geometry efficiently lifts chips away from the cutting zone, reducing clogging and heat buildup while delivering cleaner edges when machining aluminum alloys, copper, aluminum plates, and composite panels.
• OPTIMIZED GEOMETRY FOR CNC ROUTERS: Features a 4mm cutting diameter, 12mm cutting length, and 50.8mm overall length, offering an ideal balance of reach and stiffness for slotting, contouring, engraving, and light plunge cutting.
• SOLID CARBIDE CONSTRUCTION: Manufactured from premium tungsten carbide for high rigidity and wear resistance, helping minimize vibration and chatter while maintaining consistent cutting accuracy in CNC routing and engraving applications.
• UNCOATED CUTTING EDGE FOR SOFT-MATERIAL MACHINING: Uncoated carbide edges offer sharp cutting performance and cost efficiency, making these bits well-suited for aluminum, copper, plastics (ABS, acrylic, PVC), wood, and composite materials.
• 4-PIECE VALUE SET FOR WORKSHOP: Includes four identical CNC single-flute end mills, plus a protective case to prevent damage during transport and storage. Perfect for production runs, tool replacements, and maintaining consistent results across multiple jobs or machines.