{"product_id":"sandvik-coromant-5739458-corner-radius-end-mill-3-8in","title":"Sandvik Coromant 5739458 Corner Radius End Mill 3\/8in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SANDVIK COROMANT 5739458 is a solid carbide corner radius end mill engineered for demanding metal removal in steel, stainless steel, cast iron, and superalloys including titanium. It carries a 3\/8 inch cutting diameter, a 1\/64 inch (0.0150 inch) corner radius, and four flutes with a high-helix, right-hand spiral geometry. The TiAlN multilayer PVD coating resists heat and wear during both roughing and finishing passes. At 3-1\/2 inches overall length with a 1-1\/8 inch length of cut, this extra-long tool suits deep-pocket and side-wall milling operations. Machinists and CNC programmers installing this mill benefit from the centercutting capability, which allows direct plunge entry without a pre-drilled pilot hole.\u003c\/p\u003e\n\u003cp\u003eThis end mill fits applications where a blend of roughing material removal and finishing surface quality is required in a single tool. Its primary workpiece materials include P-grade steels, M-grade stainless steels, K-grade cast irons, and S-grade superalloys and titanium. The extra-long configuration and straight-cylindrical shank make it a practical choice for aerospace, die-mold, and general machining operations where reach into deep features is necessary. It is sold individually and is designed for use with standard toolholders accepting a 3\/8 inch straight shank.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction with TiAlN multilayer PVD coating for extended tool life in hard and abrasive materials\u003c\/li\u003e\n  \u003cli\u003eCorner radius geometry (0.0150 inch) reduces stress concentration and chipping at the cutting edge\u003c\/li\u003e\n  \u003cli\u003eFour-flute, high-helix, right-hand spiral flute design supports both roughing and finishing in a single pass\u003c\/li\u003e\n  \u003cli\u003eCentercutting capability allows direct plunge milling without a pre-drilled entry point\u003c\/li\u003e\n  \u003cli\u003eExtra-long configuration (3-1\/2 inches OAL, 1-1\/8 inches LOC) provides reach for deep-pocket and side-wall operations\u003c\/li\u003e\n  \u003cli\u003eMill diameter tolerance h9 and shank diameter tolerance h6 ensure consistent fit in precision toolholders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with standard toolholders accepting a 3\/8 inch straight-cylindrical shank. Suitable for machining steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium. Part of the SANDVIK COROMANT RA216 series, material grade 1620.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist or CNC operator following the toolholder manufacturer torque and runout specifications. Ensure the machine spindle is fully stopped and de-energized before changing tooling. Confirm shank seating depth and runout with a dial indicator before committing to full-depth cuts. Do not exceed the recommended length of cut when side-milling to avoid deflection-related tool breakage.\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: 0.0150 inches (approximately 1\/64 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: 1-1\/8 inches (1.2500 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3-1\/2 inches (3.5000 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\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiAlN Multilayer 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\u003eHelix Style\u003c\/strong\u003e: High\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Type\u003c\/strong\u003e: Corner Radius\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Extra Long\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\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\u003eChipbreaker\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\u003eMill Diameter Tolerance\u003c\/strong\u003e: h9\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: h6\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Materials\u003c\/strong\u003e: Steel, Stainless Steel, Cast Iron, Superalloys and Titanium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: RA216\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: 1620\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Weight\u003c\/strong\u003e: 0.25 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: SANDVIK COROMANT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 5739458\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SANDVIK COROMANT","offers":[{"title":"Default Title","offer_id":51747144565042,"sku":"5739458","price":439.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/470f5f59cd5accb68e89c750e2e797c0_d9198aee-cc34-44db-a83c-1cab385915d5.jpg?v=1788876696","url":"https:\/\/voomisupply.com\/products\/sandvik-coromant-5739458-corner-radius-end-mill-3-8in","provider":"Voomi Supply","version":"1.0","type":"link"}