{"product_id":"harvey-tool-763516-c6-ball-end-mill-1-4-in-6-flute-carbide","title":"Harvey Tool 763516-C6 Ball End Mill 1\/4 in 6 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HARVEY TOOL 763516-C6 is a solid carbide ball end mill engineered for material removal in hardened steels ranging from 45 to 68 Rc. With a 1\/4 inch cutting diameter, six flutes, and a variable helix geometry at 20 degrees, it maintains stable cutting action and reduces chatter in difficult workpiece materials. The AlTiN Nano PVD coating provides thermal resistance and wear protection at elevated surface speeds. At 2.5 inches overall length with a 3\/4 inch length of cut, it suits a wide range of roughing operations in hardened tool steel, die steel, and similarly hard materials. Installation is performed by machinists and CNC operators.\u003c\/p\u003e\n\u003cp\u003eThis end mill is designed for single-end roughing applications in hardened ferrous materials classified under material grade H. The 3\/4 inch reach length and straight cylindrical 1\/4 inch shank allow direct use in standard collet chucks and end mill holders on vertical machining centers and high-speed spindles. It is a material-specific tool from Harvey Tool's End Mills for Hardened Steels - Ball series, intended where conventional high-speed steel or uncoated carbide tooling cannot sustain cutting edge integrity.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide substrate provides rigidity and edge retention in 45-68 Rc hardened steels\u003c\/li\u003e\n  \u003cli\u003eAlTiN Nano PVD coating delivers high thermal resistance and extended tool life at elevated cutting speeds\u003c\/li\u003e\n  \u003cli\u003eVariable helix design at 20 degrees reduces harmonic vibration and chatter during roughing passes\u003c\/li\u003e\n  \u003cli\u003eSix-flute configuration increases feed rate capability and improves surface finish in hard material roughing\u003c\/li\u003e\n  \u003cli\u003eBall nose geometry produces accurate radius features and contoured surfaces in die and mold work\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut, right-hand spiral with no chipbreaker for clean chip evacuation in ferrous materials\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in hardened steels from 45 to 68 Rc as part of the Harvey Tool End Mills for Hardened Steels - Ball series, Material Specific End Mills. Fits standard 1\/4 inch collet chucks and end mill holders with an h6 shank diameter tolerance.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by qualified machinists or CNC setup technicians. Secure the shank in a properly sized collet or end mill holder and verify runout before operation. Always power down and lock out the spindle before changing tooling. Do not exceed the recommended depth of cut or engagement for the workpiece hardness — consult the manufacturer's speeds and feeds documentation for the specific material and coating combination.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.2500 inches (1\/4 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 6\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.7500 inches (3\/4 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.5000 inches (2-1\/2 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.2500 inches (1\/4 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: h6\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: +0.0000 \/ -0.0020 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNose Radius\u003c\/strong\u003e: 0.1250 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 20 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Style\u003c\/strong\u003e: Variable\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\u003eFlute Type\u003c\/strong\u003e: Spiral\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\u003c\/strong\u003e: AlTiN Nano (PVD)\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\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Hard Material (45-68 Rc steels)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\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\u003eChipbreaker\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.05 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: 763516-C6\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HARVEY TOOL","offers":[{"title":"Default Title","offer_id":51734724673842,"sku":"763516-C6","price":102.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5581c91a008a874c37eef49a5e15f1a0.jpg?v=1788766075","url":"https:\/\/voomisupply.com\/products\/harvey-tool-763516-c6-ball-end-mill-1-4-in-6-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}