{"product_id":"seco-03083879-corner-radius-end-mill-3-4-in-4-flute-altin","title":"Seco 03083879 Corner Radius End Mill 3\/4 in 4 Flute Altin","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SECO 03083879 is a solid carbide corner radius end mill built for high-demand metal removal in stainless steel, superalloys, titanium, and other hard materials. It carries a 3\/4 inch diameter, a 1-1\/2 inch length of cut, and a 0.0300 inch corner radius that reduces stress concentration and extends tool life at the cutting edge. The AlTiN PVD coating provides thermal resistance and hardness at elevated cutting temperatures. With four flutes, a variable helix, and a high helix angle of 40 degrees, this tool balances chip evacuation and surface finish for both roughing and finishing operations. Licensed machinists and CNC operators use this end mill in production environments where tight tolerances on difficult materials are routine.\u003c\/p\u003e\u003cp\u003eThis end mill is suited for machining stainless steel, superalloys such as Inconel, titanium alloys, and other hard material classifications (ISO material codes M, S, and H). The single-end, centercutting design allows plunge entry as well as peripheral milling. Extended reach geometry with a 2-1\/4 inch reach length and a Weldon flat shank accommodates setups where standard-reach tooling cannot reach the feature. It belongs to the STRN440.2 series and is intended for use in standard toolholders compatible with a 3\/4 inch Weldon flat shank.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAlTiN PVD coating for high-temperature performance in stainless steel, superalloys, and titanium\u003c\/li\u003e\n\u003cli\u003eVariable helix design reduces chatter and improves surface finish in hard materials\u003c\/li\u003e\n\u003cli\u003e0.0300 inch corner radius reduces edge chipping and extends tool life versus sharp-corner geometry\u003c\/li\u003e\n\u003cli\u003eCentercutting with right-hand flute direction and right-hand cutting for standard CNC spindle use\u003c\/li\u003e\n\u003cli\u003eWeldon flat shank with extended reach of 2-1\/4 inches for deep-feature access\u003c\/li\u003e\n\u003cli\u003eMicrograin carbide substrate provides rigidity and wear resistance in demanding applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in toolholders accepting a 3\/4 inch Weldon flat shank, consistent with STRN440.2 series tooling standards for hard material and superalloy machining applications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified CNC machinist or toolroom technician. Seat the Weldon flat shank fully in a compatible toolholder and secure the set screw against the flat to prevent axial pullout. Verify runout does not exceed the 0.0005 inch TIR maximum before beginning a cut. Always confirm spindle speed and feed rate are appropriate for the workpiece material and depth of cut before engaging the tool.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 3\/4 inch (0.7500 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 1-1\/2 inches (1.5000 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0300 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/4 inch (0.7500 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeck Diameter\u003c\/strong\u003e: 0.7200 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReach Length\u003c\/strong\u003e: 2-1\/4 inches (2.2500 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 40 degrees (High, Variable)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide, Micrograin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: AlTiN (PVD)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Weldon Flat\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\u003eEnd Type\u003c\/strong\u003e: Corner Radius, Single End, Centercutting\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: Stainless Steel, Superalloys and Titanium, Hard Material\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\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\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\u003eSeries\u003c\/strong\u003e: STRN440.2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.78 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 03083879\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SECO TOOLS","offers":[{"title":"Default Title","offer_id":51563666243890,"sku":"03083879","price":552.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/69658900f5113f7127ef79e9e211e841.jpg?v=1786500711","url":"https:\/\/voomisupply.com\/products\/seco-03083879-corner-radius-end-mill-3-4-in-4-flute-altin","provider":"Voomi Supply","version":"1.0","type":"link"}