{"product_id":"seco-02687569-ball-nose-milling-insert-0-250-solid-carbide","title":"Seco 02687569 Ball Nose Milling Insert 0.250 Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SECO 02687569 is a solid carbide ball nose milling insert designed for use in indexable end mill tooling systems. It carries the ANSI\/ISO designation 218.20-0.250ER-ME03 and is manufactured to the F40M grade using fine-grain carbide substrate. The insert features a PVD-applied dual coating of TiAlN and TiN, which improves wear resistance and thermal stability during high-speed cutting operations. With a 0.250-inch corner radius, a 0.4890-inch length, and a 0.0992-inch thickness, this insert is built for precise contouring and profiling passes. It is suited for licensed machining professionals and CNC operators working in production and job-shop environments.\u003c\/p\u003e\u003cp\u003eThis insert is intended for milling steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium. The ME03 chip breaker geometry is optimized for finishing and semi-finishing operations on these materials. The positive rake angle of 11 degrees and honed cutting edge style reduce cutting forces and support stable tool engagement. It is a right-hand, single-sided insert with two cutting edges, secured by screw clamping in compatible toolholders. Typical applications include 3-axis and 4-axis CNC milling of complex contours, cavities, and sculptured surfaces.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBall nose insert style for contouring, profiling, and cavity milling\u003c\/li\u003e\n\u003cli\u003eF40M fine-grain solid carbide grade with PVD TiAlN and TiN dual coating\u003c\/li\u003e\n\u003cli\u003e0.250-inch corner radius for consistent surface finish on curved geometry\u003c\/li\u003e\n\u003cli\u003eME03 chip breaker optimized for steel, cast iron, superalloys, and titanium\u003c\/li\u003e\n\u003cli\u003ePositive 11-degree rake angle with honed edge for reduced cutting forces\u003c\/li\u003e\n\u003cli\u003eRight-hand, single-sided, screw-mounted with two cutting edges\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eCompatible with the R218.20-0.500 cutter series. Designed as a direct-fit replacement insert for toolholders in the 218.20-0.500 series per ANSI\/ISO standard 218.20-0.250ER-ME03.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified CNC machinists or toolroom technicians. Power down and lock out the machine spindle before seating or removing inserts. Use the appropriate Torx or hex key to secure the clamping screw to the toolholder specification — do not overtighten. Inspect the insert pocket and clamping screw for wear or debris before each insert change to ensure proper seating and runout control.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: 218.20\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eANSI\/ISO Code\u003c\/strong\u003e: 218.20-0.250ER-ME03\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: Ball Nose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: Fine Grain\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: F40M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiAlN and TiN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: PVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.2500 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.2150 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.0992 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 0.4890 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 0.2150 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.0945 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 0.4330 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Cutting Edges\u003c\/strong\u003e: 2\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\u003eRake Angle\u003c\/strong\u003e: 11 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 11 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: ME03\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Screw\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle or Double Sided\u003c\/strong\u003e: Single\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 90 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Materials\u003c\/strong\u003e: Steel, Cast Iron, Superalloys and Titanium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Materials\u003c\/strong\u003e: Cast Iron, Non-Ferrous Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutter Series Compatibility\u003c\/strong\u003e: R218.20-0.500\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ISO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Weight\u003c\/strong\u003e: 0.01 pounds\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: 10\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 02687569\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SECO TOOLS","offers":[{"title":"Default Title","offer_id":51557932958002,"sku":"02687569","price":551.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/aed406d22542cb21b400fbd36523a912.jpg?v=1786398771","url":"https:\/\/voomisupply.com\/products\/seco-02687569-ball-nose-milling-insert-0-250-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}