{"product_id":"harvey-tool-878593-c8-corner-radius-end-mill-3-flute-carbide","title":"Harvey Tool 878593-C8 Corner Radius End Mill 3 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HARVEY TOOL 878593-C8 is a solid carbide corner radius end mill designed for high-performance material removal in both roughing and finishing operations. It features a 0.093 inch mill diameter, a 0.01 inch corner radius, and a variable helix geometry that reduces chatter and improves surface finish at elevated feed rates. The three-flute, right-hand cutting configuration paired with a TiB2 (titanium diboride) PVD coating makes this tool well suited for aluminum alloys and non-ferrous metals, though it is also rated for steel, stainless steel, and cast iron. Licensed machinists and CNC tooling technicians working in precision shops are the primary users.\u003c\/p\u003e\n\u003cp\u003eThis end mill fits into high-precision toolholders and is used in CNC machining centers for contouring, slotting, and profiling operations. The short flute length of 0.5 inches and a 1.5 inch overall length allow it to be used in close-clearance setups where rigidity and minimal deflection are critical. The variable helix design is drawn from Harvey Tool's series of material-specific end mills optimized for aluminum alloys. It is a single-end, center-cutting tool with a straight-cylindrical 0.125 inch shank, making it compatible with standard precision collet and shrink-fit toolholding systems.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eVariable helix geometry reduces harmonics and chatter during high-speed machining\u003c\/li\u003e\n  \u003cli\u003eTiB2 PVD coating improves lubricity and tool life in aluminum and non-ferrous applications\u003c\/li\u003e\n  \u003cli\u003eCenter-cutting design allows plunge entry and full slot milling\u003c\/li\u003e\n  \u003cli\u003eSolid carbide construction provides rigidity and wear resistance across a broad range of workpiece materials\u003c\/li\u003e\n  \u003cli\u003eRight-hand flute direction and right-hand cutting for standard CNC spindle compatibility\u003c\/li\u003e\n  \u003cli\u003eTight tolerances: mill diameter held to plus or minus 0.0005 inches, corner radius to plus or minus 0.001 inches\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eRated for use with aluminum, cast iron, steel, stainless steel, wood, and composite workpiece materials (ISO material codes P, M, K, N, and O). Designed for use with high-precision toolholders. Straight-cylindrical 0.125 inch shank fits standard precision collet chucks and shrink-fit holders in that bore size.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and tool changes should be performed by qualified CNC machinists or tooling technicians with the machine in a locked-out, zero-energy state. Ensure the toolholder bore is clean and free of chips or debris before seating the shank. Confirm runout with a dial indicator after clamping, as even minor runout will reduce tool life and surface finish quality on tight-tolerance work. Follow the toolholder manufacturer's torque specifications for collet nuts or retention knobs.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.093 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.01 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.5 inches (9\/64 inches nominal)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.125 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Style\u003c\/strong\u003e: Variable\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 42 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiB2 (PVD)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Type\u003c\/strong\u003e: Corner Radius\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\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\u003eSingle or Double End\u003c\/strong\u003e: Single\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\u003eMill Diameter Tolerance\u003c\/strong\u003e: plus 0.0005 to minus 0.0005 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius Tolerance\u003c\/strong\u003e: plus 0.001 to minus 0.001 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: h6\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length Tolerance\u003c\/strong\u003e: plus 0.01 to minus 0.000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Materials\u003c\/strong\u003e: Aluminum, Cast Iron, Steel, Stainless Steel, Wood, Composite\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\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: 0.01 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: HARVEY TOOL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 878593-C8\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HARVEY TOOL","offers":[{"title":"Default Title","offer_id":51740650406194,"sku":"878593-C8","price":69.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/26f78dc1691e7b1fded74fb24858b664_47b8cd7a-08c9-4340-a28f-8f88eefaf94e.jpg?v=1788826478","url":"https:\/\/voomisupply.com\/products\/harvey-tool-878593-c8-corner-radius-end-mill-3-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}