{"product_id":"kennametal-6676403-corner-radius-end-mill-7-16-in-4-flute","title":"Kennametal 6676403 Corner Radius End Mill 7\/16 in 4 Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KENNAMETAL 6676403 is a solid carbide corner radius end mill designed for demanding metal removal in ferrous and difficult-to-machine materials. It features a 7\/16 inch cutting diameter, a 0.015 inch corner radius, and four right-hand spiral flutes with a 36-degree helix angle. The tool is coated with AlTiN (aluminum titanium nitride) via PVD process, providing high heat resistance and extended tool life in dry or high-speed cutting conditions. It is centercutting, allowing plunge entry, and is built on the H1TE series platform. Machinists and toolroom operators rely on this geometry for both roughing and finishing passes across a broad material range.\u003c\/p\u003e\n\u003cp\u003eThis end mill is suited for milling steel, stainless steel, cast iron, superalloys, titanium, and hard materials. The corner radius geometry reduces edge chipping and stress concentration at the tool tip, making it appropriate for profiling, slotting, and contouring operations where a sharp square corner would be prone to premature failure. The straight-cylindrical shank is compatible with ER single angle standard collets and TT-SS toolholding systems. It is intended for use on CNC machining centers and manual mills where close-tolerance setups are required.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eAlTiN PVD coating for high-temperature resistance and extended tool life in hard and abrasive materials\u003c\/li\u003e\n  \u003cli\u003e0.015 inch corner radius reduces cutting-edge stress and improves surface finish at part corners\u003c\/li\u003e\n  \u003cli\u003eFour-flute, right-hand spiral design at 36-degree helix for efficient chip evacuation and balanced cutting forces\u003c\/li\u003e\n  \u003cli\u003eCentercutting capability allows plunge milling without a pre-drilled entry hole\u003c\/li\u003e\n  \u003cli\u003eSubmicron carbide grade provides hardness and toughness for steel, stainless, cast iron, superalloys, and hard materials\u003c\/li\u003e\n  \u003cli\u003eSingle-end configuration with standard-length flute for general-purpose milling applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eCompatible with ER single angle standard collets and TT-SS toolholding systems. Designed for use in CNC and manual milling applications involving steel, stainless steel, cast iron, superalloys, titanium, and hard materials as designated by material codes P, M, K, S, and H.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and tool changes should be performed by a qualified machinist with the machine powered off and in a locked-out, tagged-out state per applicable safety procedures. Ensure the collet and toolholder are clean and free of debris before seating the shank to the specified gauge line. Verify runout with a dial indicator before initiating cuts, as excessive runout accelerates wear and degrades surface finish. Consult the machine tool manufacturer and Kennametal cutting data recommendations for appropriate speeds and feeds before operation.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 7\/16 inch (0.4375 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.015 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut (LOC)\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length (OAL)\u003c\/strong\u003e: 2.750 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 7\/16 inch (0.4375 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 36 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: 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 Type\u003c\/strong\u003e: Corner Radius\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePitch\u003c\/strong\u003e: Normal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSingle or Double End\u003c\/strong\u003e: Single\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCentercutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChipbreaker\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: AlTiN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating Classification\u003c\/strong\u003e: PVD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: Submicron\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Materials\u003c\/strong\u003e: Steel, Stainless Steel, Cast Iron, Superalloys, Titanium, Hard Material\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\u003eSeries\u003c\/strong\u003e: H1TE\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.16 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: KENNAMETAL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 6676403\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51740119564594,"sku":"6676403","price":217.55,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/07a49ed9e00b7aa9b89cab4141d7a4b9_e87b5a43-113a-403e-9e0f-3716547d843b.jpg?v=1788822488","url":"https:\/\/voomisupply.com\/products\/kennametal-6676403-corner-radius-end-mill-7-16-in-4-flute","provider":"Voomi Supply","version":"1.0","type":"link"}