{"product_id":"seco-17002079-ball-end-mill-1-4-in-4-flute-solid-carbide-altin","title":"Seco 17002079 Ball End Mill 1\/4 in 4 Flute Solid Carbide Altin","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SECO 17002079 is a solid carbide ball end mill designed for precision milling in ferrous and non-ferrous metalworking applications. Part of the STBN440 series, it features a 1\/4 inch cutting diameter, a 3\/8 inch length of cut, and a 4-inch overall length with extended reach geometry. The 1\/4 inch nose radius produces a true ball profile suited for contour milling, 3D profiling, and finishing passes. Four flutes with a variable helix and right-hand cutting direction help evacuate chips efficiently while maintaining surface finish quality. An AlTiN PVD coating increases wear resistance and thermal stability during high-speed cuts.\u003c\/p\u003e\n\u003cp\u003eThis end mill is suited for steel, cast iron, aluminum, and other non-ferrous materials, covering ISO material classifications P, K, and N. The extended reach design, with a 2-1\/8 inch reach length and a 1-3\/4 inch neck length, makes it appropriate for deep-pocket milling, cavity work, and die-and-mold operations where a standard-length tool cannot access the feature. It is capable of both roughing and finishing cuts in a single tool, reducing changeover time in production setups. The straight cylindrical shank fits standard ER and end mill holders commonly used in CNC machining centers and manual mills.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction for rigidity and long tool life in hard and abrasive materials\u003c\/li\u003e\n  \u003cli\u003eAlTiN PVD coating provides oxidation resistance and reduced friction at elevated cutting temperatures\u003c\/li\u003e\n  \u003cli\u003eVariable helix flute design reduces harmonic chatter and improves chip flow\u003c\/li\u003e\n  \u003cli\u003eExtended reach with 2-1\/8 inch reach length enables deep-pocket and cavity milling\u003c\/li\u003e\n  \u003cli\u003eCenter-cutting capable — supports both plunge and ramp entry strategies\u003c\/li\u003e\n  \u003cli\u003eRated for roughing and finishing, reducing the number of tools required per operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in CNC machining centers and manual mills with standard straight-bore end mill or ER collet toolholders sized for a 1\/4 inch shank. Primary workpiece materials include steel, cast iron, aluminum, and non-ferrous alloys.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by qualified machinists or CNC setup technicians. Ensure the machine spindle is fully stopped and locked out before inserting or removing the tool. Secure the straight cylindrical shank in a properly sized collet or end mill holder, torquing the retention nut to the toolholder manufacturer's specification. Verify runout against the published TIR maximum of 0.0005 inches before beginning the cut to avoid premature wear or tool failure.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 1\/4 inch (0.2500 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 3\/8 inch (0.3750 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4.0000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1\/4 inch (0.2500 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNeck Diameter\u003c\/strong\u003e: 0.2400 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNeck Length\u003c\/strong\u003e: 1-3\/4 inch (1.7500 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReach Length\u003c\/strong\u003e: 2-1\/8 inch (2.1250 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNose Radius\u003c\/strong\u003e: 0.1250 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 40 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Style\u003c\/strong\u003e: Variable, Low\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral, Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: AlTiN (PVD)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSingle or Double End\u003c\/strong\u003e: Single End\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCenter Cutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExtended Reach\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Removal Type\u003c\/strong\u003e: Roughing and Finishing\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel, Cast Iron, Aluminum and Non-Ferrous\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: +0.0000 \/ -0.0020 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length Tolerance\u003c\/strong\u003e: +0.0600 \/ -0.0600 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: -0.0001 \/ -0.0004 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTIR Maximum\u003c\/strong\u003e: 0.0005 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: STBN440\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.1 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: 17002079\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SECO TOOLS","offers":[{"title":"Default Title","offer_id":51562288644402,"sku":"17002079","price":14.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6dc1066085bac479a393280350bd8ace.jpg?v=1786474748","url":"https:\/\/voomisupply.com\/products\/seco-17002079-ball-end-mill-1-4-in-4-flute-solid-carbide-altin","provider":"Voomi Supply","version":"1.0","type":"link"}