Mitsubishi NNMU200608ZEN-MK MC5020 Carbide Milling Insert (10 pcs)
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The Mitsubishi Materials Dia-Edge NNMU200608ZEN-MK is a new, indexable carbide milling insert in grade MC5020, designed for face milling and high-feed milling applications. Decoding the part number: NNMU indicates an octagonal (8-sided) insert shape with a 0° normal clearance angle; 200608 denotes a 20 mm inscribed circle, 06 mm thickness, and 0.8 mm corner radius; ZEN is Mitsubishi's proprietary chipbreaker geometry optimized for general-purpose milling; MK designates the mounting hole style. MC5020 is a PVD-coated cemented carbide grade featuring a TiAlN-based multilayer coating engineered for high-speed milling of steel and cast iron, delivering excellent wear resistance and thermal stability. Each factory-sealed box contains 10 new inserts made in Japan, compatible with Mitsubishi's NNMU-series face milling cutters and suitable for finishing to medium roughing cuts in ISO P and K material groups.
Product Specifications
| Brand | Mitsubishi Materials / Dia-Edge |
| MPN | NNMU200608ZEN-MK |
| Grade | MC5020 |
| Insert Shape | Octagonal (8-sided), NNMU style |
| Inscribed Circle (IC) | 20 mm |
| Insert Thickness | 6.35 mm (06 designation) |
| Corner Radius | 0.8 mm |
| Chipbreaker | ZEN (general-purpose milling geometry) |
| Clearance Angle | 0° (N — negative) |
| Coating | PVD TiAlN multilayer |
| Substrate | Cemented carbide |
| ISO Material Groups | P (steel), K (cast iron) |
| Application | Face milling, high-feed milling |
| Quantity per Box | 10 inserts |
| Country of Origin | Japan |
| Condition | New (factory sealed) |