{"product_id":"helical-solutions-81994-corner-radius-end-mill-1-4in-3-flute-carbide","title":"Helical Solutions 81994 Corner Radius End Mill 1\/4in 3 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HELICAL SOLUTIONS 81994 is a 3-flute solid carbide corner radius end mill designed for high-efficiency material removal in aluminum and non-ferrous metals. It features a 1\/4 inch mill diameter, a 3\/4 inch length of cut, and a 0.0100 inch corner radius that reduces edge chipping and improves surface finish at corners. The Zplus PVD coating is applied specifically for aluminum and non-ferrous applications, reducing built-up edge and extending tool life. At 2.5 inches overall length with a 1\/4 inch straight-cylindrical shank, this end mill fits standard precision toolholders. It is a single-end, centercutting tool, meaning it can plunge as well as profile. Machinists and CNC operators working in job shops, aerospace, and general manufacturing will find this a practical everyday roughing tool.\u003c\/p\u003e\n\u003cp\u003eThe 81994 is built for primary use in aluminum and non-ferrous metals, with secondary capability in steel, stainless steel, cast iron, high temperature alloys, and hard materials. Its variable pitch design and 35-degree helix angle reduce harmonics and chatter during aggressive cuts. The chipbreaker geometry aids chip evacuation, which is critical when machining aluminum at high feed rates. This tool is suited for horizontal and vertical CNC machining centers running right-hand spindle rotation. It is recommended for use with high-precision toolholders to maintain runout within the stated TIR maximum of 0.0003 inch.\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\u003eZplus PVD coating optimized for aluminum and non-ferrous metal machining\u003c\/li\u003e\n  \u003cli\u003e0.0100 inch corner radius reduces edge stress and improves corner surface finish\u003c\/li\u003e\n  \u003cli\u003eVariable pitch design minimizes chatter and harmonic vibration\u003c\/li\u003e\n  \u003cli\u003eChipbreaker geometry promotes chip evacuation at high material removal rates\u003c\/li\u003e\n  \u003cli\u003eCentercutting capability allows direct plunge entry without a pre-drilled hole\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with high-precision toolholders. Part of the HELICAL SOLUTIONS Series H35ALV-C-3. Primary workpiece materials are aluminum and non-ferrous metals; secondary workpiece materials include steel, stainless steel, cast iron, high temperature alloys, and hard materials.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and tool changes should be performed by a qualified machinist with the machine powered down and locked out. Seat the 1\/4 inch straight-cylindrical shank fully into a high-precision toolholder collet and torque the collet nut per the toolholder manufacturer specifications. Verify runout does not exceed the rated TIR maximum before beginning a cut. Follow your facility safety standards and machine tool manufacturer guidelines when setting feeds and speeds.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.2500 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.7500 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0100 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius Tolerance\u003c\/strong\u003e: -0.0020 to 0.0020 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.5000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.2500 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 35 degrees\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: Zplus (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\u003ePitch\u003c\/strong\u003e: Variable\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Type\u003c\/strong\u003e: Corner Radius\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\u003eChipbreaker\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTIR Maximum\u003c\/strong\u003e: 0.0003 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: h6\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 to 0.0620 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Aluminum, Non-Ferrous Metal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Material\u003c\/strong\u003e: Steel, Stainless Steel, Cast Iron, High Temperature Alloy, Hard Material\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Removal Type\u003c\/strong\u003e: Roughing\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: H35ALV-C-3\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: 0.053 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: HELICAL SOLUTIONS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 81994\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HELICAL SOLUTIONS","offers":[{"title":"Default Title","offer_id":51755599003954,"sku":"81994","price":79.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4fb509a6a13e93b4572aec891af75a87_ad622026-1687-4145-bc07-7ec10d623280.jpg?v=1788956622","url":"https:\/\/voomisupply.com\/products\/helical-solutions-81994-corner-radius-end-mill-1-4in-3-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}