{"product_id":"seco-17002081-ball-end-mill-3-8-in-4-flute-altin-solid-carbide","title":"Seco 17002081 Ball End Mill 3\/8 in 4 Flute Altin Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SECO 17002081 is a solid carbide ball end mill designed for high-performance material removal in demanding machining environments. It features a 3\/8 inch mill diameter with a 1\/2 inch length of cut, a 4-inch overall length, and an extended reach configuration with a 2.125 inch reach length and a 1.625 inch neck length. The four-flute, single-end design runs right-hand cutting and right-hand flute direction with a 12-degree low helix angle. An AlTiN PVD coating provides thermal resistance and surface hardness, making this tool effective in tough cutting conditions. CNC machinists and tool-and-die professionals typically run this end mill in production and job-shop environments.\u003c\/p\u003e\n\u003cp\u003eThis end mill is engineered for milling stainless steel, superalloys, titanium, and hard materials — workpiece material codes M, S, and H per ISO designation. The extended reach and reduced neck diameter of 0.36 inches allow access to deep pockets, stepped features, and profiled walls where standard-length tools cannot reach. The Weldon flat shank provides secure tool-holder engagement and minimizes pullout risk at elevated feed rates. It is suitable for both roughing and finishing passes, making it a versatile option when tool changes need to be minimized. Part of the SECO STBN440 series, catalog number STBN440-0.375-E1-B.3-Z4.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction for rigidity and wear resistance in hard and abrasive materials\u003c\/li\u003e\n  \u003cli\u003eAlTiN PVD coating rated for stainless steel, superalloys, titanium, and hard materials (ISO codes M, S, H)\u003c\/li\u003e\n  \u003cli\u003eExtended reach design: 2.125 inch reach length with 0.36 inch neck diameter for deep-pocket access\u003c\/li\u003e\n  \u003cli\u003eFour-flute spiral geometry supports both roughing and finishing in a single tool\u003c\/li\u003e\n  \u003cli\u003eWeldon flat shank minimizes tool pullout during heavy-load cutting\u003c\/li\u003e\n  \u003cli\u003eLow 12-degree helix angle optimizes cutting forces in difficult-to-machine alloys\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003ePart of the SECO STBN440 series. Compatible with standard 3\/8 inch Weldon flat tool holders. Suitable for CNC milling machines running stainless steel, superalloys, titanium, and hard materials in both roughing and finishing operations.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by CNC machinists or tooling technicians. Secure the Weldon flat shank in a compatible 3\/8 inch end mill holder and torque the set screw per the tool-holder manufacturer's specification. Verify runout against the stated TIR maximum of 0.0005 inches after installation using a dial test indicator. Do not exceed the tool's rated cutting parameters for the workpiece material, and consult SECO's published speeds-and-feeds data for the STBN440 series before running production cuts.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 3\/8 inches (0.3750 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 1\/2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/8 inches (0.3750 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNeck Diameter\u003c\/strong\u003e: 0.36 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNeck Length\u003c\/strong\u003e: 1-5\/8 inches (1.625 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReach Length\u003c\/strong\u003e: 2-1\/8 inches (2.125 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNose Radius\u003c\/strong\u003e: 0.1875 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: 12 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Style\u003c\/strong\u003e: Low\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\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: Weldon Flat\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSingle or Double End\u003c\/strong\u003e: Single\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExtended Reach\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\u003ePrimary Workpiece Material\u003c\/strong\u003e: Stainless Steel, Superalloys, Titanium, Hard Material (ISO M, S, H)\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\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\u003eCatalog Number\u003c\/strong\u003e: STBN440-0.375-E1-B.3-Z4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.25 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: 17002081\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SECO TOOLS","offers":[{"title":"Default Title","offer_id":51563865047346,"sku":"17002081","price":224.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/41a5cf47fbc78de2cc01c6708aa09fd1.jpg?v=1786505409","url":"https:\/\/voomisupply.com\/products\/seco-17002081-ball-end-mill-3-8-in-4-flute-altin-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}