{"product_id":"harvey-tool-54678-c3-undercut-end-mill-5-64-inch-2-flute-altin","title":"Harvey Tool 54678-C3 Undercut End Mill 5\/64 Inch 2-flute Altin","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HARVEY TOOL 54678-C3 is a solid carbide undercut end mill designed for profiling, slotting, and undercutting operations in tight geometries. It features a 270-degree wrap angle that allows access to recessed walls and undercut features that standard end mills cannot reach. The 2-flute, right-hand cutting configuration paired with an AlTiN coating makes it well-suited for hardened steels, stainless alloys, and high-temperature materials. At 5\/64 inch (0.0781 inch) mill diameter with a 1.7 mm length of cut, this tool is built for precise, small-feature work in machining centers and manual mills operated by skilled machinists and toolroom professionals.\u003c\/p\u003e\u003cp\u003eThis undercut end mill is used in CNC machining and precision toolroom applications where access to confined or recessed geometry is required. The 1\/8 inch shank diameter fits standard collets and toolholders common in both vertical machining centers and manual milling setups. The slim 0.0450-inch neck diameter provides the clearance needed to reach undercut pockets and slots without interference. Applications include aerospace components, medical device parts, mold and die work, and any application requiring clean undercut profiles in hard or abrasive materials.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e270-degree wrap angle enables access to undercut and recessed wall features\u003c\/li\u003e\n\u003cli\u003eAlTiN coating provides heat resistance and extended tool life in hard and abrasive materials\u003c\/li\u003e\n\u003cli\u003eSolid carbide construction delivers rigidity and wear resistance at small diameters\u003c\/li\u003e\n\u003cli\u003e2-flute, right-hand cutting geometry for chip evacuation in confined pockets\u003c\/li\u003e\n\u003cli\u003e0.0450-inch neck diameter minimizes interference when reaching recessed features\u003c\/li\u003e\n\u003cli\u003eSingle-end design with 2-inch overall length for stable reach in deep setups\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style undercut end mill compatible with standard 1\/8 inch collets and toolholders used in CNC machining centers and manual milling machines.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist familiar with small-diameter carbide tooling. Ensure the collet and toolholder are clean and within runout specification before seating the shank, as small-diameter carbide tools are sensitive to runout-induced breakage. Power down and lock out the spindle before tool changes. Do not exceed manufacturer-recommended feeds and speeds for the workpiece material and coating type.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 5\/64 inch (0.0781 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.0670 inch (1.70 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWrap Angle\u003c\/strong\u003e: 270 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\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\u003eNeck Diameter\u003c\/strong\u003e: 0.0450 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeck Length\u003c\/strong\u003e: 0.3750 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\u003eOverall Length\u003c\/strong\u003e: 2 inch\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\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Helix\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Index\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle or Double End\u003c\/strong\u003e: Single\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 54678-C3\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HARVEY TOOL","offers":[{"title":"Default Title","offer_id":51755131273522,"sku":"54678-C3","price":110.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/29dc6da053002fa747a0ecadbfc0443f_ccca3c6c-0aca-4f91-af0a-41c756ca2b8a.jpg?v=1788951447","url":"https:\/\/voomisupply.com\/products\/harvey-tool-54678-c3-undercut-end-mill-5-64-inch-2-flute-altin","provider":"Voomi Supply","version":"1.0","type":"link"}