{"product_id":"harvey-tool-31839-c3-square-end-mill-0-039-in-3-flute-carbide","title":"Harvey Tool 31839-C3 Square End Mill 0.039 in 3 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HARVEY TOOL 31839-C3 is a solid carbide square end mill designed for high-precision milling in tight-tolerance applications. With a cutting diameter of 0.039 inches and a 3-flute geometry, this tool delivers fine detail cutting in ferrous and non-ferrous materials. The AlTiN (aluminum titanium nitride) coating improves heat resistance and extends tool life in demanding cutting environments. A 30-degree helix angle balances chip evacuation with cutting edge stability. This end mill is single-end, center-cutting, and features right-hand cut with right-hand flute orientation. It is used by machinists and tooling specialists in CNC machining centers and manual milling operations.\u003c\/p\u003e\u003cp\u003eThis end mill is suited for micro-milling work in production and job-shop environments where small-diameter tooling is required. The 0.039-inch diameter makes it appropriate for fine detail work, slotting, profiling, and contouring in materials such as hardened steel, stainless steel, titanium, and similar difficult-to-machine alloys where AlTiN coating performance is most effective. The 13\/64-inch length of cut and 1\/8-inch shank diameter make it compatible with standard collet systems used on CNC machining centers. No extended reach configuration is included.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e0.039-inch (1 mm) cutting diameter for micro-scale milling operations\u003c\/li\u003e\n\u003cli\u003eSolid carbide construction for rigidity and wear resistance at small diameters\u003c\/li\u003e\n\u003cli\u003eAlTiN coating for elevated heat resistance and extended tool life in hard materials\u003c\/li\u003e\n\u003cli\u003e3-flute design balances chip clearance with surface finish quality\u003c\/li\u003e\n\u003cli\u003e30-degree helix angle promotes smooth cutting action and efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eCenter-cutting capability allows plunge entry without a pre-drilled hole\u003c\/li\u003e\n\u003cli\u003eRight-hand cut, right-hand flute — compatible with standard CNC spindle rotation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style solid carbide square end mill for use in 1\/8-inch collet systems on CNC machining centers and milling machines requiring micro-diameter tooling.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or tooling technician familiar with CNC tooling practices. Ensure the spindle is fully stopped and the machine is powered down or in a safe state before changing tooling. Secure the shank fully within the collet to the recommended gauge length to minimize runout and tool deflection. At 0.039-inch diameter, this tool is highly susceptible to breakage from excessive feed rates, improper clamping, or runout — verify collet condition and TIR before use.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.039 inches (1 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.203 inches (13\/64 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.125 inches (1\/8 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.5 inches (2-1\/2 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 30 degrees\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\/Finish\u003c\/strong\u003e: AlTiN\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\u003eExtended Reach\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Helix\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.02 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: 31839-C3\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HARVEY TOOL","offers":[{"title":"Default Title","offer_id":51730554749234,"sku":"31839-C3","price":69.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/341c5e07ad0d09cd4743661b872e3b95.jpg?v=1788719493","url":"https:\/\/voomisupply.com\/products\/harvey-tool-31839-c3-square-end-mill-0-039-in-3-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}