{"product_id":"promax-129-33214-corner-radius-end-mill-0-5in-4-flute","title":"Promax 129-33214 Corner Radius End Mill 0.5in 4 Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe PROMAX 129-33214 is a solid carbide corner radius end mill designed for precision milling in ferrous and non-ferrous materials. It features a 0.5-inch mill diameter, a 1-inch length of cut, and a 0.02-inch corner radius that reduces stress concentrations at the cutting edge and extends tool life in demanding applications. The AlTiN coating provides thermal resistance and surface hardness, making this tool well-suited for dry or semi-dry high-speed machining. With 4 flutes and a 40-degree helix angle in a right-hand spiral configuration, it delivers efficient chip evacuation and a stable cut. Machinists and toolroom operators working on CNC machining centers are the primary users of this end mill.\u003c\/p\u003e\u003cp\u003eThis end mill fits conventional and high-speed CNC milling applications where a radiused corner profile is required to reduce edge chipping or meet part geometry requirements. The single-end, regular-length configuration makes it a practical choice for general-purpose slotting, profiling, and peripheral milling on steel, stainless steel, hardened alloys, and cast iron. The Series 129 designation places it within PROMAX's standard solid carbide end mill lineup for production and prototype work.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e0.02-inch corner radius with a tolerance of plus 0.001 to minus 0.001 inch for precise edge geometry\u003c\/li\u003e\n\u003cli\u003eAlTiN coating for elevated heat resistance and extended tool life in hard material machining\u003c\/li\u003e\n\u003cli\u003eMicrograin solid carbide substrate provides rigidity and wear resistance\u003c\/li\u003e\n\u003cli\u003e40-degree helix angle promotes smooth cutting action and efficient chip flow\u003c\/li\u003e\n\u003cli\u003eRight-hand cut, right-hand flute spiral in a single-end configuration\u003c\/li\u003e\n\u003cli\u003e4-flute design balances chip clearance with surface finish quality\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard shank end mill for use in CNC machining centers and milling machines that accept a 0.5-inch collet, end mill holder, or shrink-fit toolholder.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or toolroom technician. Ensure the machine spindle is fully stopped and the toolholder is clean and free of chips before seating the shank. Confirm the 0.5-inch shank is secured to the proper minimum insertion depth per the toolholder manufacturer's specification. Review feeds, speeds, and depth-of-cut parameters against the workpiece material before engaging the cut, as this end mill is not center-cutting and should not be used for plunge operations.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.02 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\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 Grade\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: AlTiN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: Right Hand Spiral\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 End\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentercutting\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius Tolerance\u003c\/strong\u003e: plus 0.001 to minus 0.001 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: plus 0.000 to minus 0.002 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 129\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.25 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: PROMAX\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 129-33214\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PROMAX","offers":[{"title":"Default Title","offer_id":51969169785138,"sku":"129-33214","price":117.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a4087d42c463e0be4936063b9a888621.jpg?v=1789952088","url":"https:\/\/voomisupply.com\/products\/promax-129-33214-corner-radius-end-mill-0-5in-4-flute","provider":"Voomi Supply","version":"1.0","type":"link"}