{"product_id":"kennametal-6676456-corner-radius-end-mill-3-4-in-4-flute-altin","title":"Kennametal 6676456 Corner Radius End Mill 3\/4 in 4 Flute Altin","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 6676456 is a solid carbide corner radius end mill designed for demanding metal removal in ferrous and high-hardness materials. Built to the H1TE series standard, it features a 3\/4-inch diameter, a 0.03-inch corner radius, and four right-hand spiral flutes with a 36-degree helix angle. The AlTiN PVD coating provides heat resistance and extended tool life at elevated cutting speeds. At 4 inches overall length with a 1-1\/2-inch length of cut, this is a short-length tool configured for rigidity. It is centercutting and rated for both roughing and finishing operations. Installation and operation are handled by CNC machinists and tool-and-die professionals.\u003c\/p\u003e\u003cp\u003eThe 6676456 is suited for milling steel, stainless steel, cast iron, superalloys, titanium, and hard materials. The corner radius geometry reduces stress concentration at the cutting edge, extending tool life in interrupted cuts and high-feed passes. The straight cylindrical shank at 3\/4 inch diameter fits standard end mill holders, hydraulic chucks, and shrink-fit tooling. Typical applications include profiling, slotting, and finishing passes on hardened workpieces in aerospace, die-and-mold, and general machining environments. The normal pitch and fixed helix angle make this tool predictable in stable, rigid setups.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide submicron-grade substrate for high rigidity and wear resistance\u003c\/li\u003e\n\u003cli\u003eAlTiN PVD coating rated for dry and semi-dry cutting in ferrous and hard materials\u003c\/li\u003e\n\u003cli\u003e0.03-inch corner radius reduces edge chipping and extends tool life in heavy cuts\u003c\/li\u003e\n\u003cli\u003eCentercutting design allows plunge entry without a pre-drilled hole\u003c\/li\u003e\n\u003cli\u003eRight-hand cut, right-hand flute direction with 36-degree helix for smooth chip evacuation\u003c\/li\u003e\n\u003cli\u003eSingle-end configuration with straight cylindrical shank for direct chuck mounting\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eCompatible with HC-HSK Form A holders, Hydraulic Chuck Standard Line Inch KM63XMZ, and HC-CV Form AD tooling systems. The 3\/4-inch straight cylindrical shank fits standard CNC machining center end mill holders accepting that shank diameter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by a qualified CNC machinist or toolroom technician. Power down and lock out the spindle before seating or removing the tool from its holder. Verify holder runout with a dial indicator before cutting; excessive runout accelerates edge wear on carbide tools. Follow the machine builder and toolholder manufacturer torque specifications for retention screws or collet nuts.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 3\/4 inches (0.7500 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 1-1\/2 inches (1.5000 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\/4 inches (0.7500 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.03 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: 36 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide (Submicron Grade)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: AlTiN (PVD)\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\u003eShank Type\u003c\/strong\u003e: Straight Cylindrical\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\u003eLength Type\u003c\/strong\u003e: Short\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePitch\u003c\/strong\u003e: Normal\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 Helix\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\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\u003eWeight\u003c\/strong\u003e: 0.67 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 27112803\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 6676456\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51743007277362,"sku":"6676456","price":732.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/07a49ed9e00b7aa9b89cab4141d7a4b9_c8a34bff-82c1-457e-9ad9-564b7ce62a29.jpg?v=1788841495","url":"https:\/\/voomisupply.com\/products\/kennametal-6676456-corner-radius-end-mill-3-4-in-4-flute-altin","provider":"Voomi Supply","version":"1.0","type":"link"}