{"product_id":"osg-hp455-2188-square-end-mill-7-32-in-5-flute-carbide","title":"Osg HP455-2188 Square End Mill 7\/32 in 5 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG HP455-2188 is a solid carbide square end mill from the HP455 series, designed for high-performance milling in ferrous and hardened materials. It features a 7\/32 inch (0.2188 inch) cutting diameter, a 5\/8 inch length of cut, and a 1\/4 inch shank diameter. The five-flute geometry combined with a 45-degree helix angle supports efficient chip evacuation and smooth surface finishes at higher feed rates. A TiAlN coating adds thermal resistance and extends tool life in demanding cutting environments. This end mill is centercutting, enabling plunge entry, and runs right-hand cut with right-hand spiral flutes.\u003c\/p\u003e\n\u003cp\u003eThe HP455-2188 is suited for precision machining operations including slotting, profiling, and peripheral milling on CNC machining centers and manual mills. Its regular-length geometry and 2-1\/2 inch overall length make it a practical choice for general-purpose work in tool rooms, production shops, and maintenance environments where a compact, rigid end mill is required. Machinists working in aerospace, die and mold, and general metal fabrication will find the five-flute design advantageous for finish passes and higher-speed applications.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction for rigidity and wear resistance\u003c\/li\u003e\n  \u003cli\u003eFive-flute design supports higher feed rates and improved surface finish\u003c\/li\u003e\n  \u003cli\u003e45-degree helix angle for efficient chip evacuation\u003c\/li\u003e\n  \u003cli\u003eTiAlN coating for thermal resistance in ferrous and hardened material cutting\u003c\/li\u003e\n  \u003cli\u003eCentercutting capable  -  allows direct plunge entry\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut, right-hand spiral flute configuration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style solid carbide square end mill in the OSG HP455 series for use in standard 1\/4 inch collet or end mill holder tooling systems on CNC and manual milling machines.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by qualified machinists or tooling technicians. Ensure the machine spindle is fully stopped and the tool holder is clean and free of debris before seating the end mill. Torque the collet nut or set screw to the tool holder manufacturer's specification. Confirm runout with a dial indicator before commencing cuts, and verify feeds and speeds are appropriate for the workpiece material and coating type.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 7\/32 inch (0.2188 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 5\/8 inch (0.6250 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1\/4 inch (0.2500 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2-1\/2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 45 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\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\/Coating\u003c\/strong\u003e: TiAlN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: HP455\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: 0.1 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: OSG\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: HP455-2188\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51782335856946,"sku":"HP455-2188","price":63.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9406cc16c9fc45b6b7c3767b62708539_d122c713-dec7-441d-8262-24f2e9eb1cc0.jpg?v=1789178274","url":"https:\/\/voomisupply.com\/products\/osg-hp455-2188-square-end-mill-7-32-in-5-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}