{"product_id":"accupro-311812-corner-radius-end-mill-3-4-in-5-flute","title":"Accupro 311812 Corner Radius End Mill 3\/4 in 5 Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 311812 is a solid carbide corner radius end mill designed for high-performance milling in demanding machining environments. Built on the HS series platform, it features a 3\/4 inch diameter, a 2.25 inch length of cut, and a 5 inch overall length. The AlCrTiN coating provides thermal resistance and extended tool life in hard and abrasive materials. With 5 flutes, a variable index, and a 38-degree helix angle, this end mill delivers efficient chip evacuation and reduced vibration during heavy roughing and finishing passes. It is centercutting capable, allowing direct plunge entry into the workpiece. Material grade is micrograin carbide for consistent edge integrity.\u003c\/p\u003e\u003cp\u003eThe 311812 is suited for milling operations on ferrous metals, hardened steels, stainless, and similar difficult-to-machine alloys. Its single-end configuration and right-hand flute direction make it a standard fit for CNC vertical and horizontal machining centers running high-speed or high-feed programs. The corner radius geometry — 0.120 inch — reduces stress concentrations at the cutting edge and improves surface finish at the floor-to-wall transition in pocketing, slotting, and profiling operations.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAlCrTiN coating for heat resistance and extended tool life in hard materials\u003c\/li\u003e\n\u003cli\u003e5-flute, variable index design reduces chatter and improves surface finish\u003c\/li\u003e\n\u003cli\u003e0.120 inch corner radius minimizes edge chipping and smooths floor transitions\u003c\/li\u003e\n\u003cli\u003eCentercutting construction allows direct plunge and ramping entry\u003c\/li\u003e\n\u003cli\u003eMicrograin solid carbide substrate for consistent edge sharpness and rigidity\u003c\/li\u003e\n\u003cli\u003eRight-hand cut, right-hand spiral flute configuration for standard CNC spindle use\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and standard tooling option for CNC machining centers accepting a 3\/4 inch straight shank end mill in ER, side-lock, or hydraulic toolholders.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and tool changes must be performed by a qualified machinist with the machine spindle fully stopped and the machine in a locked-out state per applicable shop safety procedures. Verify toolholder runout and clamping torque to the toolholder manufacturer specification before operation. Inspect the cutting edges for coating integrity before each use — do not run a chipped or damaged end mill. Confirm spindle speed, feed rate, and depth of cut parameters match the workpiece material and toolpath strategy before engaging the cut.\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 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 2.25 inches (57.15 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 5 inches (127 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/4 inch (19.05 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.120 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 38 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Type\u003c\/strong\u003e: Corner Radius\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: AlCrTiN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: Micrograin\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\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentercutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Index\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\u003eSeries\u003c\/strong\u003e: HS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1 pound\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: 311812\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51728016507186,"sku":"311812","price":397.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a8254d0ae7b10182ca163db3aac307e6_b9189d5f-7989-4142-a87a-6e98a0675324.jpg?v=1788686257","url":"https:\/\/voomisupply.com\/products\/accupro-311812-corner-radius-end-mill-3-4-in-5-flute","provider":"Voomi Supply","version":"1.0","type":"link"}