Product Description
73072 CNC Single Flute Carbide End Mill, 4mm — Engineered to Clear Chips Fast and Cut Clean
Soft materials like aluminum, copper, acrylic, and composite panels demand a very specific cutting geometry — one that clears chips before they re-cut, weld, or build heat at the tip. The POWERTEC 73072 delivers exactly that with a single-flute up-cut spiral design that aggressively evacuates chips away from the cutting zone on every pass, keeping the flute clear and the edge sharp. Machined from premium tungsten carbide for rigidity and wear resistance, with an uncoated cutting edge optimized for non-ferrous metals and soft materials, these 4mm end mills are purpose-built for CNC routers and engraving machines where clean results and consistent repeatability are non-negotiable.
The specs hit the right balance for detail and production work alike: 4mm cutting diameter, 12mm cutting length, 50.8mm overall length, and a standard 4mm shank that fits the vast majority of CNC collets without adapters. Whether you're slotting aluminum plate, contouring ABS panels, engraving acrylic signage, routing MDF or plywood, or machining copper and brass components, the 73072 handles the full range without tool changes. The 4-pack with protective storage case means you have backups on hand for production runs, keeps tools protected between jobs, and makes this a practical buy for anyone running a busy CNC setup.
Key Features & Benefits
Single Flute Up-Cut Spiral — Maximum Chip Evacuation for Soft Materials
- The single-flute up-cut geometry lifts chips out of the cut and away from the workpiece on every pass, preventing chip re-cutting, heat buildup, and material welding that plague multi-flute bits when machining aluminum, copper, and thermoplastics.
- Delivers cleaner edge quality on soft and non-ferrous materials compared to standard two-flute or multi-flute end mills, reducing post-machining cleanup and secondary finishing operations.
- Up-cut action also helps hold thin workpieces flat by pulling material toward the spoilboard during the cut — a meaningful advantage on thin aluminum sheet, acrylic panels, and composite materials.
Optimized Geometry — 4mm Diameter, 12mm Cut Length, 4mm Shank
- 4mm cutting diameter with a 12mm cutting length provides an ideal reach-to-stiffness ratio for slotting, contouring, profile cutting, and light plunge work — enough depth for most sheet and plate applications without sacrificing rigidity.
- 50.8mm overall length with a standard 4mm shank fits most CNC router collets and engraving machine chucks directly — no reduction sleeve or adapter needed for compatible setups.
Solid Tungsten Carbide Construction — Rigid, Accurate, Long-Lasting
- Manufactured from premium solid tungsten carbide — significantly harder and more wear-resistant than HSS (high-speed steel), maintaining cutting edge geometry longer through extended production runs.
- High rigidity minimizes deflection and chatter during high-speed CNC passes, producing smoother sidewall finishes and tighter dimensional accuracy on contoured and slotted cuts.
Uncoated Edge — Sharp, Efficient Performance on Non-Ferrous & Soft Materials
- The uncoated carbide cutting edge stays sharper at the tip compared to coated alternatives when working aluminum, copper, brass, ABS, acrylic, PVC, wood, MDF, and composite panel materials — coatings designed for steel can actually increase friction and galling on softer non-ferrous metals.
- Uncoated geometry is the correct specification for aluminum alloys and thermoplastics, where sharp edge retention matters more than surface hardness protection.
4-Pack with Protective Case — Ready for Production, Built for the Long Run
- Includes four identical 4mm single-flute end mills — keeping replacement tooling on hand eliminates downtime mid-production when a bit reaches end of life, keeping your CNC running without interruption.
- The included protective storage case prevents tip damage during transport and storage, preserving cutting edge geometry so every bit performs like new when it goes into the collet.
WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov
