{"product_id":"accupro-312134-corner-radius-end-mill-3-8-in-5-flute","title":"Accupro 312134 Corner Radius End Mill 3\/8 in 5 Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 312134 is a solid carbide corner radius end mill designed for precision milling operations in metalworking and machining applications. It features a 3\/8 inch cutting diameter, a 0.5 inch length of cut, and a 4 inch overall length. The 5-flute, right-hand spiral configuration with a 38-degree variable index helix promotes efficient chip evacuation and smooth cutting action. An AlCrTiN coating provides heat and wear resistance, making this end mill well suited for cutting hardened steels, stainless alloys, and other demanding materials. The extended reach design with a 1-1\/8 inch reach length and reduced neck diameter adds versatility in deep-pocket and hard-to-reach feature machining.\u003c\/p\u003e\u003cp\u003eThis end mill is used in CNC machining centers and manual mills for contouring, profiling, slotting, and pocket milling where a controlled corner radius is required to reduce stress concentrations in finished parts. The 0.060 inch corner radius and centercutting geometry allow plunge entry and axial ramp moves without a pre-drilled hole. It is a single-end tool intended for production and job-shop environments where surface finish and dimensional accuracy on ferrous and non-ferrous workpieces are priorities. Machinists and CNC programmers working in aerospace, die-mold, and general precision machining will find this tool appropriate for finishing and semi-finishing passes.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid micrograin carbide substrate for rigidity and edge retention at elevated cutting speeds\u003c\/li\u003e\n\u003cli\u003eAlCrTiN coating for high-temperature wear resistance on hardened and abrasive materials\u003c\/li\u003e\n\u003cli\u003e5-flute variable-index geometry reduces harmonic chatter during high-feed passes\u003c\/li\u003e\n\u003cli\u003e0.060 inch corner radius reduces workpiece stress risers and extends tool life on profiling cuts\u003c\/li\u003e\n\u003cli\u003eExtended reach with 1-1\/8 inch reach length and 0.356 inch neck diameter for deep-feature access\u003c\/li\u003e\n\u003cli\u003eCentercutting design allows direct plunge entry and ramping without pilot drilling\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and standard-production end mill compatible with 3\/8 inch collets, ER collet chucks, and shrink-fit toolholders used in CNC machining centers and manual milling machines.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or CNC setup technician. Ensure the spindle is fully stopped and the machine is in an e-stop or locked-out state before changing tooling. Seat the shank fully into the collet or toolholder to the recommended grip length and verify runout with a dial indicator before beginning a cut. Do not exceed the tool manufacturer or machine builder recommendations for depth of cut, feed rate, or spindle speed for the workpiece material being machined.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 3\/8 inch (0.3750 inches)\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: 1\/2 inch (0.5000 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/8 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.060 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReach Length\u003c\/strong\u003e: 1-1\/8 inch (1.1250 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeck Diameter\u003c\/strong\u003e: 0.356 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 38 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: AlCrTiN\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\u003eVariable Index\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentercutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended Reach\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\u003eMill Diameter Tolerance\u003c\/strong\u003e: +0.000000 \/ -0.001000 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.04 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 27112803\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: 312134\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51748650778930,"sku":"312134","price":119.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/218a9bb0ec85e0bcef2be0718319066c_dcea1d66-a14a-42d0-a4e4-6869e4e37bab.jpg?v=1788896203","url":"https:\/\/voomisupply.com\/products\/accupro-312134-corner-radius-end-mill-3-8-in-5-flute","provider":"Voomi Supply","version":"1.0","type":"link"}