{"product_id":"iscar-3401166-corner-radius-end-mill-1-2-in-4-flute-carbide","title":"Iscar 3401166 Corner Radius End Mill 1\/2 in 4 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ISCAR 3401166 is a solid carbide corner radius end mill from the ECI-4-VF series, designed for high-performance material removal in demanding machining applications. It carries a 1\/2 inch mill diameter, a 2-1\/2 inch length of cut, and a 0.06 inch corner radius. The cutting geometry features 4 flutes with a variable index and right-hand spiral flute direction. An AlTiCrSiN PVD coating applied via physical vapor deposition provides heat and wear resistance during aggressive milling passes. The Weldon flat shank and h6 shank tolerance ensure secure, repeatable clamping in compatible toolholders. Overall length is 5 inches and shank diameter is 1\/2 inch. This tool is suited for both roughing and finishing operations and is installed by machinists in CNC milling environments.\u003c\/p\u003e\u003cp\u003eThis end mill is built for use on steel, stainless steel, cast iron, superalloys, titanium, and hard materials, covering ISO material groups P, M, K, S, and H. The extra-long length type with a 2.5 inch reach makes it well suited for deep-pocket milling, shoulder milling, and contour work where standard-length tools cannot reach. The centercutting design allows plunge entry directly into the workpiece. It is intended for use with a compatible toolholder in CNC vertical or horizontal machining centers where rigid setup and proper speeds and feeds are maintained for the target material.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAlTiCrSiN PVD coating for wear resistance in steel, stainless, cast iron, superalloys, and hard materials\u003c\/li\u003e\n\u003cli\u003eVariable index flute spacing reduces harmonic vibration during heavy cuts\u003c\/li\u003e\n\u003cli\u003eCorner radius of 0.06 inches strengthens the cutting edge and improves surface finish at corners\u003c\/li\u003e\n\u003cli\u003eCentercutting geometry allows direct plunge milling without pre-drilling\u003c\/li\u003e\n\u003cli\u003eWeldon flat shank with h6 tolerance provides positive engagement and runout control in toolholders\u003c\/li\u003e\n\u003cli\u003eExtra-long reach of 2.5 inches suits deep-cavity and deep-pocket applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with a compatible toolholder. Catalog reference ECI-4 500-2.5W06VF5 identifies this tool within the ISCAR ECI-4-VF series. Suitable for CNC milling setups targeting steel, stainless steel, cast iron, superalloys, titanium, and hard workpiece materials.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by a qualified machinist or toolroom technician. Ensure the machine spindle is fully stopped and the tool is securely seated and torqued in the toolholder before starting the machine. The Weldon flat must align with the toolholder setscrew for proper drive. Verify speeds, feeds, and depth of cut against the material being machined and the machine's rigidity before initiating a cut.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 1\/2 inch (0.5000 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1\/2 inch (0.5000 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 2-1\/2 inches (2.5000 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.06 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide (Submicron grade)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: AlTiCrSiN (PVD)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Weldon Flat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: h6\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\u003eVariable Index\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Helix\u003c\/strong\u003e: No\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: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\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\u003ePrimary Workpiece Materials\u003c\/strong\u003e: Steel, Stainless Steel, Cast Iron, Superalloys, Titanium, Hard Material\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: ECI-4-VF\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: 0.01 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: ISCAR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 3401166\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ISCAR","offers":[{"title":"Default Title","offer_id":51733010710834,"sku":"3401166","price":164.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/76aebafa75cad44d31f5c4a0535535fb_a2c8973c-70f8-4090-a183-2a50fcf9ce42.jpg?v=1788750404","url":"https:\/\/voomisupply.com\/products\/iscar-3401166-corner-radius-end-mill-1-2-in-4-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}