{"product_id":"osg-hp441-8750-square-end-mill-7-8-inch-4-flute-solid-carbide","title":"Osg HP441-8750 Square End Mill 7\/8 Inch 4 Flute Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG HP441-8750 is a solid carbide square end mill designed for high-performance milling operations in ferrous and non-ferrous metals. It features a 7\/8 inch cutting diameter with a 1-1\/2 inch length of cut, a 4-flute spiral geometry, and a 35-degree helix angle. The TiAlN coating provides heat resistance and extended tool life under demanding cutting conditions. At 4 inches overall length with a 7\/8 inch shank diameter, this is a right-hand cut, right-hand flute, centercutting end mill suited for slotting, profiling, and plunge operations. It is typically installed in CNC machining centers, manual mills, or toolroom equipment by machinists and tooling professionals.\u003c\/p\u003e\n\u003cp\u003eThis end mill is suited for production and toolroom environments requiring precision milling in steel, stainless, cast iron, and similar materials. The centercutting design allows direct plunge entry without pre-drilling. The 35-degree helix promotes chip evacuation and reduces cutting forces, making it appropriate for both roughing and finishing passes in general-purpose machining applications. Single-end configuration means the tool is replaced rather than flipped when the cutting edge is worn.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction for rigidity and wear resistance in demanding materials\u003c\/li\u003e\n  \u003cli\u003eTiAlN finish for elevated heat resistance and extended tool life\u003c\/li\u003e\n  \u003cli\u003e4-flute spiral geometry with 35-degree helix for efficient chip evacuation\u003c\/li\u003e\n  \u003cli\u003eCentercutting design supports direct plunge milling without a pilot hole\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut and right-hand flute configuration for standard spindle operation\u003c\/li\u003e\n  \u003cli\u003eRegular length profile with 7\/8 inch shank matching cutting diameter for maximum rigidity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in standard ER, CAT, BT, or HSK toolholders accepting a 7\/8 inch shank diameter. Suitable for CNC machining centers and manual milling machines configured for right-hand rotation.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis tool should be installed by a qualified machinist or tooling technician. Ensure the spindle is fully stopped and locked out before inserting or removing the end mill from the toolholder. Use a properly sized collet or end mill holder to achieve full shank engagement and minimize runout. Verify tool stick-out is minimized for optimal rigidity before beginning the cut.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 7\/8 inch (0.8750 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: 7\/8 inch (0.8750 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\/Finish\u003c\/strong\u003e: TiAlN\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: 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\u003eCentercutting\u003c\/strong\u003e: Yes\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\u003eExtended Reach\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1 pound\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: HP441-8750\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51744424296754,"sku":"HP441-8750","price":530.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4fc708023ab9c94a0682da27e23ae120_652a3e44-098a-42c8-b99f-00348e5338f6.jpg?v=1788856353","url":"https:\/\/voomisupply.com\/products\/osg-hp441-8750-square-end-mill-7-8-inch-4-flute-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}