{"product_id":"promax-100-02012-corner-radius-end-mill-5-16-in-4-flute","title":"Promax 100-02012 Corner Radius End Mill 5\/16 in 4 Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe PROMAX 100-02012 is a solid carbide corner radius end mill designed for precision milling operations in metalworking and machining applications. It features a 5\/16-inch diameter with a 3\/4-inch length of cut and a corner radius ranging from 0.04 to 0.05 inches, which reduces stress concentration at corners and extends workpiece life. The four-flute geometry paired with a 30-degree helix angle promotes smooth chip evacuation and improved surface finish. A TiCN coating increases surface hardness and wear resistance, making this tool well-suited for ferrous and non-ferrous materials. Machinists and CNC operators install this tool in standard milling setups where controlled corner geometry is required.\u003c\/p\u003e\u003cp\u003eThis end mill is used in job shop, tool and die, and production machining environments. Its centercutting design allows for plunge entry, adding versatility in slotting, profiling, and pocket milling operations. The 5\/16-inch shank diameter fits standard collets and end mill holders. At 2.5 inches overall length, it is appropriate for general-purpose milling where extended reach is not required. Right-hand cutting and right-hand flute direction are standard for conventional CNC milling spindles.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide construction for rigidity and wear resistance in demanding cuts\u003c\/li\u003e\n\u003cli\u003eTiCN coating improves hardness and reduces friction at the cutting edge\u003c\/li\u003e\n\u003cli\u003eCorner radius of 0.04 to 0.05 inches reduces edge chipping and stress risers\u003c\/li\u003e\n\u003cli\u003eCentercutting design enables direct plunge entry without a pilot hole\u003c\/li\u003e\n\u003cli\u003eFour flutes with 30-degree helix promote efficient chip flow and surface quality\u003c\/li\u003e\n\u003cli\u003eRight-hand cut and right-hand helix for standard CNC milling spindle compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a direct-fit replacement or standard tooling selection for CNC machining centers and manual mills using 5\/16-inch collets or end mill holders. Part of the PROMAX Series 100 corner radius end mill line.\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 machine is locked out before changing tooling. Seat the shank fully into the collet or holder to the recommended engagement depth and torque the retention hardware per the machine manufacturer's specifications. Verify runout after installation before beginning a cut.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 5\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 5\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut (LOC)\u003c\/strong\u003e: 3\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length (OAL)\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.04 to 0.05 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: 30 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiCN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Solid Carbide\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\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePitch\u003c\/strong\u003e: Coarse\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: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 100\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: 100-02012\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PROMAX","offers":[{"title":"Default Title","offer_id":51972940071218,"sku":"100-02012","price":128.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ad7a1400469aaa256ee4199ad20142a2.jpg?v=1789971302","url":"https:\/\/voomisupply.com\/products\/promax-100-02012-corner-radius-end-mill-5-16-in-4-flute","provider":"Voomi Supply","version":"1.0","type":"link"}