{"product_id":"helical-solutions-81679-ball-end-mill-1-2-in-4-flute-carbide","title":"Helical Solutions 81679 Ball End Mill 1\/2 in 4 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HELICAL SOLUTIONS 81679 is a solid carbide, 4-flute ball end mill designed for material removal in steel, stainless steel, and cast iron. It carries a 1\/2-inch mill diameter with a matching 1\/2-inch straight-cylindrical shank, a 2-inch length of cut, and a 4-inch overall length. The APLUS PVD coating improves wear resistance and heat dissipation during high-speed cutting operations. Variable index geometry reduces harmonic chatter, making this tool suited for both roughing and finishing passes. Machinists and tool-and-die professionals working on ferrous metals will find this a reliable single-end tool for 3-axis and full-contour profiling operations.\u003c\/p\u003e\n\u003cp\u003eThis end mill is built for machining steel, tool steels, stainless steel, and cast iron in production and job-shop environments. The ball nose profile makes it well-suited for contouring, profiling, and 3D surface work where a flat-bottom geometry is not practical. The 2-inch reach length accommodates moderate-depth cavities and pockets without requiring an extended-reach variant. It is a standard-length tool compatible with conventional collet chucks, end mill holders, and hydraulic toolholders with a 1\/2-inch bore.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction provides rigidity and wear resistance in ferrous cutting applications\u003c\/li\u003e\n  \u003cli\u003eAPLUS PVD coating rated for steel, stainless steel, and cast iron workpiece materials\u003c\/li\u003e\n  \u003cli\u003eVariable index flute spacing reduces chatter and vibration during aggressive passes\u003c\/li\u003e\n  \u003cli\u003eBall nose geometry with 0.25-inch nose radius enables 3D contouring and profiling\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut and right-hand spiral flutes for standard CNC mill spindle direction\u003c\/li\u003e\n  \u003cli\u003eSingle-end design; suited for roughing and finishing in a single tool\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use on steel, stainless steel, and cast iron workpieces per ISO material codes P, M, and K. Fits any 1\/2-inch collet chuck, end mill holder, or hydraulic toolholder. Part of the HELICAL SOLUTIONS 4-Flute Ball Variable Pitch APLUS series for steels, tool steels, and cast iron.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a machinist or toolroom technician. Ensure the machine spindle is fully stopped and the tool changer or spindle lock is engaged before inserting or removing the end mill. Seat the shank to the full recommended grip length in the toolholder — typically a minimum of 2.5 times the shank diameter — to maintain runout within specification. Verify TIR at setup; maximum allowable TIR for this tool is 0.0005 inches.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.5000 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 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: 0.5000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNose Radius\u003c\/strong\u003e: 0.2500 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReach Length\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: APLUS (PVD)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral, 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\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\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 End\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Materials\u003c\/strong\u003e: Steel, Stainless Steel, Cast Iron\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Removal Type\u003c\/strong\u003e: Roughing and Finishing\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: +0.0000 \/ -0.0020 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length Tolerance\u003c\/strong\u003e: +0.0620 \/ -0.0620 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: h6\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum TIR\u003c\/strong\u003e: 0.0005 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Fractional Inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.322 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: HELICAL SOLUTIONS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 81679\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HELICAL SOLUTIONS","offers":[{"title":"Default Title","offer_id":51755162435890,"sku":"81679","price":201.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e9c8bc55c4f31badf2181f4032989dca_d9e29ae3-5a6e-46d7-a776-0dcea9bbfe98.jpg?v=1788951700","url":"https:\/\/voomisupply.com\/products\/helical-solutions-81679-ball-end-mill-1-2-in-4-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}