{"product_id":"harvey-tool-787378-c3-corner-radius-end-mill-5-64-in-4-flute","title":"Harvey Tool 787378-C3 Corner Radius End Mill 5\/64 in 4 Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HARVEY TOOL 787378-C3 is a miniature corner radius end mill designed for precision finishing operations in demanding metalworking applications. Built from solid carbide and coated with AlTiN via a PVD process, this single-end tool features a 5\/64 inch (0.0780 inch) diameter, a 0.010 inch corner radius, and 4 helical right-hand flutes. The long-flute geometry provides a 5\/16 inch length of cut and an overall length of 2.5 inches with a 1\/8 inch straight-cylindrical shank. Centercutting capability allows direct plunging. This tool is intended for use by machinists and tool-and-die professionals running CNC milling operations where tight tolerances and fine surface finishes are required.\u003c\/p\u003e\n\u003cp\u003eThe 787378-C3 is suited for finishing passes on steel, stainless steel, cast iron, non-ferrous metals, and composite materials. Its miniature diameter and long-flute design make it well-matched for contouring, profiling, and corner-radius work in tight pockets and narrow features where reach and precision are critical. The 30-degree helix angle promotes smooth chip evacuation during right-hand cutting. It is appropriate for both prototype and production environments operating on CNC machining centers with compatible toolholders sized for a 1\/8 inch shank.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction for rigidity and wear resistance in ferrous and non-ferrous materials\u003c\/li\u003e\n  \u003cli\u003eAlTiN PVD coating extends tool life in steel and stainless steel applications\u003c\/li\u003e\n  \u003cli\u003e0.010 inch corner radius with tolerance of plus 0.0002 \/ minus 0.0002 inch for consistent edge geometry\u003c\/li\u003e\n  \u003cli\u003eCentercutting design permits direct plunge entry without a pilot hole\u003c\/li\u003e\n  \u003cli\u003eLong-flute configuration with 5\/16 inch length of cut provides extended reach in shallow pockets\u003c\/li\u003e\n  \u003cli\u003eRight-hand flute direction and right-hand cutting for standard CNC spindle setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with toolholders accepting a 1\/8 inch straight-cylindrical shank. Compatible workpiece materials include steel (ISO P), stainless steel (ISO M), cast iron (ISO K), non-ferrous metals (ISO N), and composites (ISO O).\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist following the toolholder manufacturer's clamping specifications. Ensure the spindle is fully stopped and the machine is in an safe state before changing tooling. Confirm shank seating depth meets the toolholder minimum engagement requirement before tightening. Coolant-through is not supported on this tool; use external coolant or mist lubrication as appropriate for the workpiece material.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 5\/64 inch (0.0780 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.010 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius Tolerance\u003c\/strong\u003e: plus 0.0002 \/ minus 0.0002 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: plus 0.0005 \/ minus 0.0005 inch\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: 5\/16 inch (0.3125 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length Tolerance\u003c\/strong\u003e: plus 0.0100 \/ minus 0.0000 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1\/8 inch (0.1250 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 30 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Type\u003c\/strong\u003e: Corner Radius\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSingle or Double End\u003c\/strong\u003e: Single\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCentercutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: AlTiN (PVD)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Removal Type\u003c\/strong\u003e: Finishing\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Long\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Materials\u003c\/strong\u003e: Steel, Stainless Steel, Cast Iron, Non-Ferrous Metal, Composite\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.03 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: 787378-C3\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HARVEY TOOL","offers":[{"title":"Default Title","offer_id":51728214786354,"sku":"787378-C3","price":70.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ba7dc18f40f5449099e1d2f66e35c275.jpg?v=1788689673","url":"https:\/\/voomisupply.com\/products\/harvey-tool-787378-c3-corner-radius-end-mill-5-64-in-4-flute","provider":"Voomi Supply","version":"1.0","type":"link"}