{"product_id":"kennametal-6676386-corner-radius-end-mill-3-8-in-4-flute-altin","title":"Kennametal 6676386 Corner Radius End Mill 3\/8 in 4 Flute Altin","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KENNAMETAL 6676386 is a solid carbide corner radius end mill designed for precision milling in demanding metal-cutting applications. It features a 3\/8-inch diameter with a 0.015-inch corner radius, 4 right-hand spiral flutes, and a 1-inch length of cut. The AlTiN (aluminum titanium nitride) PVD coating delivers high-temperature hardness and oxidation resistance, making it well suited for dry or high-speed cutting. The submicron carbide grade provides the toughness and wear resistance needed in production environments. Machinists and CNC tool-and-die professionals select this tool when surface finish and edge integrity matter across both roughing and finishing passes.\u003c\/p\u003e\n\u003cp\u003eThis end mill is engineered for use on steel, stainless steel, cast iron, superalloys, titanium, and hard materials. Its centercutting geometry allows plunge entry, expanding its application range to include slot milling, pocket milling, and profiling operations. The straight-cylindrical 3\/8-inch shank is compatible with KENNAMETAL HC 20M through HC 32M hydraulic sleeves with inch bores, as specified in the product data. The normal pitch and fixed helix design provide predictable chip evacuation in standard CNC machining center setups.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e0.015-inch corner radius reduces stress concentration and extends tool life at corners\u003c\/li\u003e\n  \u003cli\u003eAlTiN PVD coating rated for high-speed cutting in ferrous and hard materials\u003c\/li\u003e\n  \u003cli\u003eSubmicron solid carbide grade for enhanced edge toughness and wear resistance\u003c\/li\u003e\n  \u003cli\u003eCentercutting design enables plunge milling without a pre-drilled entry point\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut, right-hand flute spiral with normal pitch for consistent chip flow\u003c\/li\u003e\n  \u003cli\u003eSingle-end configuration; Series H1TE standard length construction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eCompatible with KENNAMETAL HC 20M through HC 32M hydraulic sleeves metric with inch bores. Designed for CNC machining centers and manual milling machines using standard 3\/8-inch straight-cylindrical shank toolholders. Intended for machining steel, stainless steel, cast iron, superalloys, titanium, and hard materials per KENNAMETAL material codes P, M, K, S, and H.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist or CNC setup technician. Ensure the machine spindle is fully stopped and the tool changer is disabled before inserting or removing the tool from its holder. Set tool length offset in the CNC controller before running the first pass. Confirm runout at the tool tip with a dial indicator before beginning production cuts, particularly when working with hard or abrasive workpiece materials.\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\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\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3 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\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\u003eCoating\u003c\/strong\u003e: AlTiN (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\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\u003eVariable Index\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVariable Helix\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExtended Reach\u003c\/strong\u003e: No\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 Materials\u003c\/strong\u003e: Steel, Stainless Steel, Cast Iron, Superalloys, Titanium, Hard Material\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: H1TE\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 27112803\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.1347 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: 6676386\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51739715207474,"sku":"6676386","price":202.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/07a49ed9e00b7aa9b89cab4141d7a4b9_f4266a59-d258-4eb7-921a-a7c9b779f1c9.jpg?v=1788818144","url":"https:\/\/voomisupply.com\/products\/kennametal-6676386-corner-radius-end-mill-3-8-in-4-flute-altin","provider":"Voomi Supply","version":"1.0","type":"link"}