{"product_id":"osg-hp421-1968-bn-ball-end-mill-0-1969-in-2-flute-carbide","title":"Osg HP421-1968-BN Ball End Mill 0.1969 in 2 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG HP421-1968-BN is a solid carbide ball end mill engineered for high-performance metal removal in demanding machining applications. Part of the OSG Hy-Pro-Carb HP421BN series, it features a 0.1969-inch (5 mm) mill diameter, a 2-flute helical design with a 35-degree helix angle, and a TiAlN PVD coating applied over a submicron carbide grade. The coating extends tool life by resisting heat and wear at elevated cutting speeds. With a 0.6299-inch (16 mm) length of cut and single-end geometry, this tool is suited for both roughing and finishing passes in a single setup. Licensed machinists and CNC operators install this tool in vertical or horizontal machining centers.\u003c\/p\u003e\n\u003cp\u003eThis ball end mill is designed for use across a wide range of workpiece materials, including steel, stainless steel, cast iron, superalloys, titanium, and hard materials (ISO material groups P, M, K, S, and H). The straight-cylindrical shank with h6 tolerance ensures secure, accurate toolholder engagement. Its standard length profile and compact 51 mm (approximately 2.008 inches) overall length make it well suited for close-tolerance cavity, profile, and contour milling where rigidity and surface finish control are critical.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid submicron carbide substrate for superior wear resistance and edge retention\u003c\/li\u003e\n  \u003cli\u003eTiAlN PVD coating extends tool life in high-temperature cutting conditions\u003c\/li\u003e\n  \u003cli\u003e35-degree medium helix angle balances chip evacuation and cutting stability\u003c\/li\u003e\n  \u003cli\u003e2-flute ball nose geometry supports both roughing and finishing in a single tool\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut, right-hand flute, single-end configuration\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical shank with h6 shank diameter tolerance for precise toolholder fit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eRated for cutting steel, stainless steel, cast iron, superalloys, titanium, and hard materials (ISO groups P, M, K, S, H). Fits standard toolholders accepting a 5 mm straight-cylindrical shank with h6 tolerance.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a qualified CNC machinist or toolroom technician. Power down and lock out the spindle before changing tooling. Seat the shank fully in a collet or end mill holder rated for the shank diameter and torque the retention mechanism to the toolholder specification. Verify runout with an indicator before commencing a cut, as excessive runout accelerates edge wear and reduces surface finish quality on ball-nose tools.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.1969 inches (5.00 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.6299 inches (16.00 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 51.00 mm (approximately 2.008 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 5.00 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: h6\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: +0.000 \/ -0.038 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNose Radius\u003c\/strong\u003e: 2.50 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 35 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Style\u003c\/strong\u003e: Medium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Helical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide (Submicron Grade)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiAlN (PVD)\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\u003eEnd Configuration\u003c\/strong\u003e: Single End\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\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\u003eCoolant Through\u003c\/strong\u003e: No\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: HP421BN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Metric\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.2 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 3 inches L x 0.5 inches W x 0.5 inches H\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: OSG\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: HP421-1968-BN\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51740345172274,"sku":"HP421-1968-BN","price":53.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5cf4947b996b9488c0e41070101164d1_84a72e92-ab54-48a4-8ff2-f9195cad6869.jpg?v=1788824465","url":"https:\/\/voomisupply.com\/products\/osg-hp421-1968-bn-ball-end-mill-0-1969-in-2-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}