{"product_id":"kennametal-4048689-corner-chamfer-end-mill-0-25in-3-flute","title":"Kennametal 4048689 Corner Chamfer End Mill 0.25in 3 Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KENNAMETAL 4048689 is a solid carbide corner chamfer end mill designed for precision chamfering and edge-breaking operations on ferrous and non-ferrous workpieces. It measures 0.25 inches in diameter with a 0.375-inch length of cut and features a 0.0118-inch chamfer width. The AlTiN coating provides thermal resistance and extended tool life in dry or semi-dry cutting environments. With a 20-degree slow helix angle and fine pitch, this single-end mill delivers controlled chip evacuation and smooth finishes on close-tolerance features. It is centercutting and runs in a right-hand cutting direction with spiral flutes.\u003c\/p\u003e\n\u003cp\u003eThis end mill is suited for milling operations requiring consistent chamfer geometry on machined components. It fits standard 1\/4-inch collets or end mill holders and is appropriate for CNC machining centers and manual mills in precision job shop, aerospace, and general metalworking applications. The 2-inch overall length keeps the tool compact for rigid setups in confined areas. The MDRHEC series designation indicates suitability for high-efficiency roughing and finishing chamfer passes at controlled feed and speed parameters.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction for rigidity and wear resistance in demanding cuts\u003c\/li\u003e\n  \u003cli\u003eAlTiN coating extends tool life in high-temperature dry cutting applications\u003c\/li\u003e\n  \u003cli\u003e0.0118-inch chamfer width for precise, repeatable edge treatment\u003c\/li\u003e\n  \u003cli\u003eCentercutting design allows plunge entry without a pre-drilled pilot\u003c\/li\u003e\n  \u003cli\u003eRight-hand spiral flutes with 20-degree slow helix for controlled chip flow\u003c\/li\u003e\n  \u003cli\u003eSingle-end configuration with 1\/4-inch shank for standard collet compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a direct-fit replacement for 1\/4-inch shank end mill holders and collet chucks requiring a corner chamfer end mill in the KENNAMETAL MDRHEC series.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by qualified machinists or CNC setup technicians. Secure the 1\/4-inch shank in a clean, properly torqued collet or end mill holder before operation. Ensure the spindle is fully stopped and the machine is in a safe state before tool changes. Do not exceed the tool manufacturer's recommended speeds and feeds for the workpiece material and coating type.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.375 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer Width\u003c\/strong\u003e: 0.0118 inches (0.30 mm)\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: 20 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Style\u003c\/strong\u003e: Slow\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: Fine\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Configuration\u003c\/strong\u003e: Single End\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\u003eExtended Reach\u003c\/strong\u003e: No\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\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: MDRHEC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 6.5 inches L x 1.3 inches W x 1.3 inches H\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.187 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 27112803\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: 4048689\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51731971735858,"sku":"4048689","price":97.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ad76d87c556c235f7248563c18ba33bb.jpg?v=1788737428","url":"https:\/\/voomisupply.com\/products\/kennametal-4048689-corner-chamfer-end-mill-0-25in-3-flute","provider":"Voomi Supply","version":"1.0","type":"link"}