{"product_id":"seco-17000021-square-end-mill-5-8-in-3-flute-solid-carbide","title":"Seco 17000021 Square End Mill 5\/8 in 3 Flute Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SECO 17000021 is a solid carbide square end mill designed for precision milling of aluminum and non-ferrous materials. It features a 5\/8 inch cutting diameter, a 3\/4 inch length of cut, and a 6 inch overall length, placing it in the long-reach category for deeper cavity and slot applications. The three-flute, 45-degree helix spiral configuration promotes efficient chip evacuation in softer metals and reduces heat buildup at the cutting edge. The bright\/uncoated finish and micrograin carbide substrate make this tool well suited for high-speed passes where coating compatibility or surface finish requirements call for an uncoated tool. Installation and use are handled by machinists and CNC operators in production and job-shop environments.\u003c\/p\u003e\n\u003cp\u003eThis end mill is intended for single-end use in milling operations on aluminum, copper, brass, and other non-ferrous workpiece materials. The extended reach length of 4 inches and long overall length allow access to features that standard-length end mills cannot reach. The centercutting geometry supports both plunge and ramp entry. Right-hand cut and right-hand flute direction are standard for conventional CNC milling setups. This tool belongs to the SECO Series AN345 product family.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e5\/8 inch cutting diameter with a mill diameter tolerance of +0.0000 to -0.0020 inches for consistent sizing\u003c\/li\u003e\n  \u003cli\u003e45-degree helix angle promotes aggressive chip evacuation in aluminum and non-ferrous applications\u003c\/li\u003e\n  \u003cli\u003eMicrograin solid carbide substrate provides edge integrity at elevated cutting speeds\u003c\/li\u003e\n  \u003cli\u003eExtended reach with 4 inch reach length and 6 inch overall length for deep-feature access\u003c\/li\u003e\n  \u003cli\u003eCentercutting design allows plunge milling and ramp entry without a pre-drilled pilot hole\u003c\/li\u003e\n  \u003cli\u003eBright\/uncoated finish compatible with cutting fluids and coatings applied at the shop level\u003c\/li\u003e\n  \u003cli\u003eNo coolant-through passages — external coolant or flood application is required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style cutting tool for use in standard straight-shank tool holders accepting a 5\/8 inch shank diameter, compatible with ER collet chucks, end mill holders, and shrink-fit holders sized for 0.6250 inch shanks in CNC machining centers and manual mills.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis tool is installed by machinists using a torque wrench and appropriately sized collet chuck or end mill holder — verify holder bore matches the 5\/8 inch shank before mounting. Confirm TIR does not exceed the specified 0.0005 inch maximum using a dial indicator before beginning a cut. Power down and lock out the spindle before any tool change. Do not use this uncoated carbide end mill on ferrous materials, as it is rated for aluminum and non-ferrous workpiece materials only.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 5\/8 inch (0.6250 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 3\/4 inch (0.7500 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 5\/8 inch (0.6250 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 6 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReach Length\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 45 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide, Micrograin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCentercutting\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\u003eSingle or Double End\u003c\/strong\u003e: Single\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Aluminum and Non-Ferrous\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: +0.0000 to -0.0020 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: -0.0001 to -0.0004 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length Tolerance\u003c\/strong\u003e: +0.0600 to -0.0600 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: AN345\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Long\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.9 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: 17000021\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SECO TOOLS","offers":[{"title":"Default Title","offer_id":51562732650802,"sku":"17000021","price":473.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d0da64393846cdd954aa8d000ede17a7_eead991c-467c-4e7b-b542-d32cae35a139.jpg?v=1786483420","url":"https:\/\/voomisupply.com\/products\/seco-17000021-square-end-mill-5-8-in-3-flute-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}