{"product_id":"osg-hp441-7500-square-end-mill-3-4-in-4-flute-solid-carbide","title":"Osg HP441-7500 Square End Mill 3\/4 in 4 Flute Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG HP441-7500 is a solid carbide square end mill engineered for high-performance milling in demanding shop environments. Designed for right-hand cut and right-hand flute direction, this center-cutting tool handles full-slot and peripheral milling operations. The 3\/4 inch diameter cutter features a 35-degree helix angle with straight flute geometry and a TiAlN coating that improves heat resistance and extends tool life in abrasive and high-temperature cutting conditions. Micrograin carbide construction provides edge integrity at elevated feeds and speeds. This end mill is installed by machinists and tool-and-die professionals running CNC or manual milling machines.\u003c\/p\u003e\n\u003cp\u003eThe HP441-7500 is suited for milling ferrous and non-ferrous materials in job shop, production, and maintenance machining applications. The 1-1\/2 inch length of cut accommodates typical depth-of-cut requirements in mold work, fixture fabrication, and general part machining. A 3\/4 inch straight shank fits standard ER collets, end mill holders, and shrink-fit tooling systems used on vertical and horizontal machining centers.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid micrograin carbide construction for rigidity and edge retention\u003c\/li\u003e\n  \u003cli\u003eTiAlN finish improves thermal resistance in high-speed and dry cutting\u003c\/li\u003e\n  \u003cli\u003e4-flute design balances chip evacuation with surface finish quality\u003c\/li\u003e\n  \u003cli\u003e35-degree helix angle reduces cutting forces on straight flute geometry\u003c\/li\u003e\n  \u003cli\u003eCenter-cutting capability allows direct plunge entry into the workpiece\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut and right-hand flute — standard orientation for most CNC setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with standard 3\/4 inch end mill holders, ER collet chucks, and shrink-fit tooling systems on CNC and manual vertical milling machines. Part of the OSG HP441 series.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a qualified machinist or tooling technician. Ensure the machine spindle is fully stopped and locked before inserting or removing the end mill from the holder. Verify runout with a dial indicator after tooling is seated and torqued to the holder specification. Consult OSG HP441 series cutting data for recommended speeds, feeds, and depth-of-cut parameters for the target material.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 3\/4 inch (0.7500 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: 1-1\/2 inches (1.5000 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: 3\/4 inch (0.7500 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 35 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Straight\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide (Micrograin)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiAlN\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\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\u003eVariable Helix\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChipbreaker\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.08 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: HP441\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: HP441-7500\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51748575871282,"sku":"HP441-7500","price":361.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/efa70260b82086491cc86145703073c6.jpg?v=1788895331","url":"https:\/\/voomisupply.com\/products\/osg-hp441-7500-square-end-mill-3-4-in-4-flute-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}