{"product_id":"accupro-12183157-corner-radius-end-mill-3-4-in-4-flute-altin","title":"Accupro 12183157 Corner Radius End Mill 3\/4 in 4 Flute Altin","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 12183157 is a solid carbide corner radius end mill designed for high-performance milling in demanding machining environments. It features a 3\/4 inch mill diameter, a 2-1\/4 inch length of cut, and a 0.06 inch corner radius that reduces stress concentrations at the cutting edge and extends tool life in finishing and semi-finishing passes. The AlTiN coating provides excellent heat resistance and hardness at elevated cutting temperatures, making it well suited for hardened steels, stainless, and high-temp alloys. This is a single-end, centercutting tool ground from micrograin carbide stock with a right-hand spiral flute and right-hand cut configuration.\u003c\/p\u003e\u003cp\u003eThis end mill is used in CNC milling operations across job shops, production machining, and tool and die environments. The long flute design and 5 inch overall length make it effective for deep-pocket milling, stepped floor finishing, and contour work where reach is a factor. The 0.06 inch corner radius suits applications where a sharp square corner is not required and edge chipping is a concern. Machinists running steel, cast iron, titanium, and similar materials will find the AlTiN coating and micrograin substrate a reliable combination at elevated feeds and speeds.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e3\/4 inch mill diameter with matching 3\/4 inch shank for rigid tool holding\u003c\/li\u003e\n\u003cli\u003e0.06 inch corner radius reduces edge chipping and extends tool life in finishing operations\u003c\/li\u003e\n\u003cli\u003eAlTiN coating delivers high heat resistance for dry or near-dry cutting of ferrous and exotic alloys\u003c\/li\u003e\n\u003cli\u003e4-flute, right-hand spiral geometry with centercutting capability for plunge entry\u003c\/li\u003e\n\u003cli\u003eMicrograin solid carbide substrate for improved wear resistance and edge retention\u003c\/li\u003e\n\u003cli\u003eLong flute configuration — 2-1\/4 inch LOC — supports deep-pocket and contour milling\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a direct-fit replacement for standard 3\/4 inch shank end mill holders, collet chucks, and shrink-fit tooling systems accepting a 3\/4 inch shank diameter. Verify holder runout and clamping torque specifications per toolholder manufacturer guidelines before use.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist familiar with CNC tooling setup and safe tool change procedures. Ensure the machine spindle is fully stopped and the control is in a safe state before inserting or removing the tool. Clean the shank and toolholder bore thoroughly before clamping to minimize runout. Follow the toolholder manufacturer's recommended pull-out force and clamping specifications; do not exceed spindle speed ratings for the tool diameter and flute geometry.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.750 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\u003eCorner Radius\u003c\/strong\u003e: 0.0600 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\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 2.2500 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: 0.750 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\u003eHelix Angle\u003c\/strong\u003e: 40 degrees\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\u003eEnd Type\u003c\/strong\u003e: Corner Radius\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\u003eLength Type\u003c\/strong\u003e: Long\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentercutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle or Double End\u003c\/strong\u003e: Single\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Index\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended Reach\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.04 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: ACCUPRO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 12183157\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51735396385074,"sku":"12183157","price":323.42,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6815180d9c2de137420fd74e7037d978.jpg?v=1788772262","url":"https:\/\/voomisupply.com\/products\/accupro-12183157-corner-radius-end-mill-3-4-in-4-flute-altin","provider":"Voomi Supply","version":"1.0","type":"link"}