{"product_id":"seco-02744581-ball-nose-milling-insert-mm4500-carbide","title":"Seco 02744581 Ball Nose Milling Insert MM4500 Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SECO 02744581 is a solid carbide ball nose milling insert in the 218.20-250ER-ME12 series, designed for high-performance material removal in CNC milling applications. It carries a CVD-applied TiCN and Al2O3 dual-layer coating in the MM4500 grade, which is engineered for cutting stainless steel, steel, and superalloys including titanium. The insert features a positive rake angle of 6 degrees, a 15-degree relief angle, and a honed cutting edge style. With 2 cutting edges and a right-hand orientation, it is suited for finish and semi-finish milling passes where edge integrity and surface quality are critical. This insert is installed by machinists and CNC tooling technicians in production and job-shop environments.\u003c\/p\u003e\n\u003cp\u003eThis insert is intended for use in stainless steel, carbon and alloy steel, superalloys, and titanium workpieces, corresponding to ISO material groups M, P, and S. It is compatible with the R218.20-50 cutter series and is held in place via screw clamping. The ME12 chip breaker geometry supports controlled chip formation across these material groups. Typical applications include profiling, contouring, and helical interpolation in both vertical and horizontal machining centers. The insert is a single-sided design with a 90-degree included angle, making it appropriate for full ball nose profiling operations.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction with coarse grain material grade for toughness and edge retention\u003c\/li\u003e\n  \u003cli\u003eCVD-applied TiCN and Al2O3 dual-layer coating in MM4500 grade for heat and wear resistance\u003c\/li\u003e\n  \u003cli\u003eBall nose insert shape with 0.9843 inch corner radius for profiling and contouring operations\u003c\/li\u003e\n  \u003cli\u003ePositive 6-degree rake angle and honed cutting edge for clean entry into difficult materials\u003c\/li\u003e\n  \u003cli\u003eME12 chip breaker geometry optimized for stainless steel, steel, superalloys, and titanium\u003c\/li\u003e\n  \u003cli\u003eRight-hand, single-sided insert with screw holding method for secure, repeatable seating\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eCompatible with the R218.20-50 cutter series. The ANSI and ISO code for this insert is 218.20-250ER-ME12. Designed as a direct OEM-style replacement or standard insert selection for machines running the 218.20-250 series tooling system.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a qualified machinist or CNC tooling technician. Power down and lock out the machine spindle before seating or removing inserts. Use the manufacturer-specified torx or hex key to tighten the clamping screw to the tool body specification — do not overtighten, as solid carbide inserts are brittle and can crack under excessive clamping force. Inspect the insert pocket and clamping screw for wear or debris before seating a new insert.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: 218.20\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: Ball Nose\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: MM4500\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide, Coarse Grain\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiCN and Al2O3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: CVD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Cutting Edges\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.9843 inches (63\/64 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.7815 inches (25\/32 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.4000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 0.7815 inches (25\/32 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 1.8831 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.2717 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 1.7320 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRake Angle\u003c\/strong\u003e: 6 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 15 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 90 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Edge Style\u003c\/strong\u003e: Honed\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRake\u003c\/strong\u003e: Positive\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: ME12\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Screw\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSided\u003c\/strong\u003e: Single\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Stainless Steel (ISO M)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Materials\u003c\/strong\u003e: Steel, Stainless Steel, Superalloys and Titanium (ISO P, M, S)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutter Series Compatibility\u003c\/strong\u003e: R218.20-50\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eANSI\/ISO Code\u003c\/strong\u003e: 218.20-250ER-ME12\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ISO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.15 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SECO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 02744581\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SECO TOOLS","offers":[{"title":"Default Title","offer_id":51562482139442,"sku":"02744581","price":721.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d38c89d69fe444252d587ff3e59c84cb.jpg?v=1786477876","url":"https:\/\/voomisupply.com\/products\/seco-02744581-ball-nose-milling-insert-mm4500-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}