{"product_id":"helical-solutions-27122-corner-radius-end-mill-1-4-in-7-flute","title":"Helical Solutions 27122 Corner Radius End Mill 1\/4 in 7 Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HELICAL SOLUTIONS 27122 is a 7-flute corner radius end mill designed for high-efficiency material removal and finishing in ferrous and non-ferrous machining applications. Built from solid carbide and coated with a proprietary APLUS PVD coating, this tool delivers extended tool life and thermal resistance in demanding cutting environments. The 0.50 mm (0.0200 inch) corner radius reduces stress concentrations at the cutting edge, improving surface finish and edge durability. It measures 1\/4 inch in diameter with a 1\/2 inch length of cut and a 2 inch overall length. The straight cylindrical shank is sized at 1\/4 inch for direct chuck or collet mounting in high-precision toolholders.\u003c\/p\u003e\u003cp\u003eThis end mill is suited for roughing and finishing operations on steel, cast iron, stainless steel, and non-ferrous metals. It performs well in low-alloy steel, medium alloy steel, tool steel, and cast iron applications, making it a versatile choice for mold work, die making, and general precision machining. The variable pitch geometry reduces harmonic vibration during aggressive cuts, and the right-hand spiral flute design promotes efficient chip evacuation. It is intended for use with high-precision toolholders to maximize runout control and cutting stability.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e7-flute geometry supports both roughing and finishing in a single tool\u003c\/li\u003e\n\u003cli\u003eAPLUS PVD coating provides heat resistance and extended wear life in ferrous materials\u003c\/li\u003e\n\u003cli\u003e0.50 mm corner radius reduces edge chipping and improves part surface finish\u003c\/li\u003e\n\u003cli\u003eVariable pitch design minimizes chatter and harmonic vibration\u003c\/li\u003e\n\u003cli\u003eRight-hand cutting, right-hand flute spiral for standard CNC mill setups\u003c\/li\u003e\n\u003cli\u003eSolid carbide construction for rigidity in tight-tolerance applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with high-precision toolholders. Part of the HELICAL SOLUTIONS HEV-7 series. Suitable for machining steel, cast iron, stainless steel, and non-ferrous metals per the material application codes P, K, M, and N.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist familiar with CNC milling setup and toolholder specifications. Ensure the machine spindle is fully stopped and locked out before changing tooling. Use a high-precision collet or shrink-fit toolholder to maintain TIR within the 0.0005 inch maximum specification. Do not use this tool in center-cutting applications, as it is not designed for plunge entry.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 1\/4 inch (0.2500 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 1\/2 inch (0.5000 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2 inches (2.0000 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1\/4 inch (0.2500 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.50 mm (0.0200 inch)\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: APLUS (PVD, Proprietary)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Type\u003c\/strong\u003e: Corner Radius\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\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePitch\u003c\/strong\u003e: Variable\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: Roughing and Finishing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel, Cast Iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Material\u003c\/strong\u003e: Stainless Steel, Non-Ferrous Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Low-Alloy Steel, Medium Alloy Steel, Tool Steel, Cast Iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTIR Maximum\u003c\/strong\u003e: 0.0005 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: -0.0020\/0.0000 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius Tolerance\u003c\/strong\u003e: -0.0020 to 0.0020 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: h6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length Tolerance\u003c\/strong\u003e: -0.0620\/0.0620 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentercutting\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\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\u003eSingle or Double End\u003c\/strong\u003e: Single\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: HEV-7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.046 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: HELICAL SOLUTIONS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 27122\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HELICAL SOLUTIONS","offers":[{"title":"Default Title","offer_id":51728842195250,"sku":"27122","price":67.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/88cc31acb4428f94d269f6ff61b8a860_120d6066-b5b5-4e57-89bf-71c686ff8f03.jpg?v=1788696645","url":"https:\/\/voomisupply.com\/products\/helical-solutions-27122-corner-radius-end-mill-1-4-in-7-flute","provider":"Voomi Supply","version":"1.0","type":"link"}