{"product_id":"seco-17006990-corner-radius-end-mill-1-4-in-5-flute-carbide","title":"Seco 17006990 Corner Radius End Mill 1\/4 in 5 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SECO 17006990 is a solid carbide corner radius end mill designed for high-performance finishing operations on demanding workpiece materials. It features a 1\/4 inch cutting diameter, a 3\/8 inch length of cut, and a 0.0450 inch corner radius that reduces stress concentrations and extends tool life in hardened and abrasive materials. The five-flute geometry and 45-degree high helix angle promote efficient chip evacuation and a smooth surface finish. An AlTiN PVD coating provides thermal resistance and hardness retention at elevated cutting temperatures. This end mill is a single-end, centercutting design with a straight cylindrical shank, suited for use in standard toolholders on CNC milling machines operated by machinists working in precision manufacturing environments.\u003c\/p\u003e\n\u003cp\u003eThis end mill is designed for finishing cuts in steel, stainless steel, superalloys, titanium, and hard materials. Its short flute length and rigid five-flute carbide construction make it well suited for applications requiring tight tolerances and fine surface finishes. The S545R series targets shops running difficult-to-machine alloys where tool deflection and heat generation are primary concerns. It mounts in standard collet or shrink-fit toolholders and is appropriate for CNC vertical and horizontal milling centers.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1\/4 inch cutting diameter with 0.0450 inch corner radius for reduced edge chipping and improved workpiece surface finish\u003c\/li\u003e\n  \u003cli\u003eFive-flute geometry increases core strength and feed rate capability over lower-flute-count alternatives\u003c\/li\u003e\n  \u003cli\u003eAlTiN PVD coating delivers high-temperature hardness retention for cutting steel, stainless steel, superalloys, titanium, and hard materials\u003c\/li\u003e\n  \u003cli\u003e45-degree high helix angle promotes smooth chip flow and reduces cutting forces during finishing passes\u003c\/li\u003e\n  \u003cli\u003eCentercutting design allows plunge entry and versatile toolpath strategies\u003c\/li\u003e\n  \u003cli\u003eRight-hand flute direction and right-hand cutting direction with normal pitch for conventional CNC milling setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with standard CNC toolholders accepting a 1\/4 inch straight cylindrical shank. Part of the SECO S545R series, rated for primary workpiece materials including steel (P), stainless steel (M), superalloys and titanium (S), and hard materials (H).\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a machinist or toolroom technician on a powered-down CNC spindle before tool engagement. Confirm toolholder bore and collet size match the 1\/4 inch shank diameter before clamping. Verify runout against the TIR maximum of 0.0005 inches after seating to maintain tolerance and coating integrity. Follow the machine tool manufacturer and toolholder manufacturer torque and clamping specifications for the specific holder type in use.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 1\/4 inch (0.2500 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 3\/8 inch (0.3750 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0450 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1\/4 inch (0.2500 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 45 degrees (High)\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 (PVD)\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\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\u003eMaterial Removal Type\u003c\/strong\u003e: Finishing\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Short\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\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\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\u003eTIR Maximum\u003c\/strong\u003e: 0.0005 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius Tolerance\u003c\/strong\u003e: +0.00100 to -0.00100 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: -0.0020 \/ 0.0000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: -0.0001 \/ -0.0004 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length Tolerance\u003c\/strong\u003e: -0.0600 \/ +0.0600 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Materials\u003c\/strong\u003e: Steel, Stainless Steel, Superalloys and Titanium, Hard Material\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: S545R\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: 0.06 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: SECO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 17006990\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SECO TOOLS","offers":[{"title":"Default Title","offer_id":51558132121906,"sku":"17006990","price":95.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/893727f8faf14ec92767123099122ebb.jpg?v=1786404309","url":"https:\/\/voomisupply.com\/products\/seco-17006990-corner-radius-end-mill-1-4-in-5-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}