{"product_id":"accupro-12183360-corner-radius-end-mill-5-8-in-4-flute-altin","title":"Accupro 12183360 Corner Radius End Mill 5\/8 in 4 Flute Altin","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ACCUPRO 12183360 is a solid carbide corner radius end mill designed for precision milling operations in ferrous and hard alloy materials. Built from micrograin carbide and coated with AlTiN (aluminum titanium nitride), it delivers thermal resistance and wear performance in demanding cutting conditions. The 0.045 inch corner radius reduces stress concentrations at the cutting edge and produces a controlled fillet in milled pockets and slots. With 4 flutes and a 40-degree helix, it balances chip evacuation and surface finish. The 5\/8 inch diameter and 3 inch length of cut make it suited for deep-reach applications where extra-long tooling is required. Machinists and CNC operators in job shops and production environments install this tool in standard end mill holders or collet chucks.\u003c\/p\u003e\n\u003cp\u003eThis end mill is used in vertical and horizontal machining centers for profiling, contouring, slotting, and pocket milling where a corner radius is required for part geometry or edge strength. The extra-long 6 inch overall length allows access to deep features that standard-length tooling cannot reach. The centercutting geometry permits plunge entry into workpiece material, expanding its range of use across roughing and finishing operations. Right-hand cutting and right-hand flute direction are standard for conventional CNC spindle rotation. It is appropriate for steel, stainless steel, cast iron, and high-temperature alloys where AlTiN coating provides an advantage over uncoated or TiN-coated tools.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eMicrograin solid carbide substrate for rigidity and edge retention in hard materials\u003c\/li\u003e\n  \u003cli\u003eAlTiN coating provides high-temperature wear resistance for dry or minimal-lubrication cutting\u003c\/li\u003e\n  \u003cli\u003e0.045 inch corner radius reduces edge chipping and produces a controlled fillet geometry\u003c\/li\u003e\n  \u003cli\u003e4-flute, 40-degree helix balances material removal rate with surface finish quality\u003c\/li\u003e\n  \u003cli\u003eCentercutting design allows direct plunge entry without a pre-drilled pilot hole\u003c\/li\u003e\n  \u003cli\u003eExtra-long 6 inch OAL with 3 inch length of cut for deep-reach milling applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard 5\/8 inch shank corner radius end mill compatible with ER, TG, and straight-bore collet chucks or end mill holders accepting a 5\/8 inch shank diameter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by qualified machinists or CNC setup technicians. Ensure the machine spindle is at a full stop and locked out before mounting or removing tooling. Seat the shank fully into the holder to the recommended gauge line depth and torque the retention mechanism per the toolholder manufacturer specification. Verify runout with a dial indicator after clamping, as excessive runout accelerates corner radius wear and reduces dimensional accuracy on finished parts.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 5\/8 inches (0.6250 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 6 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 5\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.045 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 40 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Type\u003c\/strong\u003e: Corner Radius\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\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: Right Hand Spiral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSingle or Double End\u003c\/strong\u003e: Single End\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCentercutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Extra Long\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 to -0.002500 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: -0.0001 to -0.0004 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.98 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: ACCUPRO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 12183360\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51738410418482,"sku":"12183360","price":302.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/cf1aaf39b5473cf1dcfd71347606b6dc.jpg?v=1788799198","url":"https:\/\/voomisupply.com\/products\/accupro-12183360-corner-radius-end-mill-5-8-in-4-flute-altin","provider":"Voomi Supply","version":"1.0","type":"link"}