{"product_id":"accupro-12178679-corner-radius-end-mill-3-4-in-5-flute-altin","title":"Accupro 12178679 Corner Radius End Mill 3\/4 in 5 Flute Altin","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ACCUPRO 12178679 is a solid carbide corner radius end mill designed for precision milling in demanding machining applications. With a 3\/4 inch diameter, a 2.5 inch length of cut, and a 0.0300 inch corner radius, this tool is built for high-accuracy contouring, slotting, and peripheral milling. The 5-flute geometry improves chip evacuation and surface finish compared to lower flute-count tools. AlTiN coating provides thermal resistance and extended tool life in hard and abrasive materials. A 40 degree helix angle promotes smooth cutting action and reduced vibration. This end mill is a single-end, centercutting tool, meaning it can plunge directly into a workpiece and is ready for use from one end only.\u003c\/p\u003e\n\u003cp\u003eThis end mill is suited for machinists working in job shops, aerospace, die and mold, and precision manufacturing environments. It performs well in steels, stainless steels, cast iron, and high-temperature alloys where AlTiN coating excels. The centercutting capability makes it suitable for ramping and plunging operations. The 3\/4 inch shank diameter fits standard ER collet chucks, end mill holders, and shrink-fit tooling designed for that shank size. Right-hand flute direction and right-hand cutting direction are standard for conventional CNC milling setups.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide micrograin construction for rigidity and edge retention\u003c\/li\u003e\n  \u003cli\u003eAlTiN coating for high-heat resistance and extended tool life in hard materials\u003c\/li\u003e\n  \u003cli\u003e5-flute design improves feed rates and surface finish over 4-flute alternatives\u003c\/li\u003e\n  \u003cli\u003e0.0300 inch corner radius reduces stress concentration at corners and improves part quality\u003c\/li\u003e\n  \u003cli\u003e40 degree helix angle for smooth cutting action and effective chip removal\u003c\/li\u003e\n  \u003cli\u003eCentercutting and variable index geometry for versatile milling operations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in standard 3\/4 inch end mill holders, ER collet chucks, and shrink-fit tooling systems compatible with a 3\/4 inch shank diameter. Suitable for CNC machining centers running right-hand spindle rotation.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by qualified machinists using appropriate toolholding equipment rated for the shank diameter and intended cutting speeds. Ensure the toolholder and spindle are clean and free of debris before seating the end mill. Verify runout with a dial indicator before production cutting to avoid premature tool wear or dimensional error. Follow the machine tool manufacturer and tooling manufacturer guidelines for speeds, feeds, and depth of cut when setting up this tool.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.7500 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 2.5000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 5.0000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/4 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\u003eCorner Radius Tolerance\u003c\/strong\u003e: 0.00150 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: +0.000000 \/ -0.002500 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\u003eNumber of Flutes\u003c\/strong\u003e: 5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 40 degrees\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\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\u003eCoating\u003c\/strong\u003e: AlTiN\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\u003eExtended Reach\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVariable Index\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.5 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 27112803\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: ACCUPRO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 12178679\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51732626407730,"sku":"12178679","price":313.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/c53a69cf73ea8dbc6735d66ab8932608.jpg?v=1788745167","url":"https:\/\/voomisupply.com\/products\/accupro-12178679-corner-radius-end-mill-3-4-in-5-flute-altin","provider":"Voomi Supply","version":"1.0","type":"link"}