{"product_id":"osg-hp441-3937-square-end-mill-10mm-4-flute-solid-carbide","title":"Osg HP441-3937 Square End Mill 10mm 4 Flute Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG HP441-3937 is a 4-flute solid carbide square end mill designed for high-performance milling in ferrous and non-ferrous materials. It carries a TiAlN coating that improves heat resistance and extends tool life in demanding cutting conditions. The cutting diameter is 10 mm (0.3937 inches), the length of cut is 25 mm (0.9843 inches), and the overall length is 70 mm. The 10 mm shank diameter matches the cutting diameter, making it compatible with standard collet and end mill holders of that bore size. A 35-degree helix angle promotes smooth chip evacuation and reduces cutting forces. This tool is installed by machinists and CNC operators in job shop, production, and toolroom environments.\u003c\/p\u003e\u003cp\u003eThe HP441-3937 is suited for finishing and semi-finishing operations on milling machines and machining centers. Its regular-length geometry and right-hand cut with right-hand flute spiral make it a general-purpose choice for slotting, profiling, and peripheral milling. The micrograin carbide substrate provides the hardness and rigidity needed for close-tolerance work in steel, stainless, cast iron, and similar materials. Single-end design means the tool is replaced rather than reindexed when the cutting edge wears.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e10 mm cutting diameter with matching 10 mm shank for direct collet mounting\u003c\/li\u003e\n\u003cli\u003eTiAlN coating for elevated heat resistance and extended tool life\u003c\/li\u003e\n\u003cli\u003e4 flutes with 35-degree right-hand helix for efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eMicrograin solid carbide substrate for rigidity and wear resistance\u003c\/li\u003e\n\u003cli\u003eCenter-cutting capable, allowing plunge entry into the workpiece\u003c\/li\u003e\n\u003cli\u003eRegular-length classification suitable for standard-depth milling applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct-use end mill compatible with standard ER collets, shrink-fit holders, and end mill holders bored to 10 mm shank diameter on CNC and manual milling machines.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by a machinist or CNC setup technician. Ensure the machine spindle is fully stopped and locked out before changing tooling. Seat the shank fully in the holder and torque the collet nut or set screw to the holder manufacturer's specification. Verify runout with a dial indicator before beginning a cut, as excessive runout accelerates edge wear and reduces surface finish quality.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 10 mm (0.3937 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 25 mm (0.9843 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 70 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 10 mm (0.3937 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: 35 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: Micrograin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiAlN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\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\u003eCenter Cutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Type\u003c\/strong\u003e: Single End\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: HP441\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.1 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: OSG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: HP441-3937\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51739419967794,"sku":"HP441-3937","price":102.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/babe7dd5b84e87d1617a244e14c7ad1c.jpg?v=1788814402","url":"https:\/\/voomisupply.com\/products\/osg-hp441-3937-square-end-mill-10mm-4-flute-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}