{"product_id":"4-flute-3mm-carbide-end-mill-long-shank-75mm-cnc-milling-tool","title":"4-Flute 3mm Carbide End Mill – Long Shank 75mm CNC Milling Tool","description":"\n\u003ch2\u003e4-Flute Carbide End Mill 3mm | Extra Long Shank 75mm | CNC Milling Tool\u003c\/h2\u003e\n\u003cp\u003ePrecision-engineered for demanding industrial and CNC machining applications, this \u003cstrong\u003e3mm 4-Flute Carbide End Mill\u003c\/strong\u003e features an extra-long 75mm straight shank for deep-reach milling tasks. Crafted from premium solid carbide, it delivers exceptional hot hardness and oxidation resistance — keeping performance consistent even under high-speed, high-temperature cutting conditions. Whether you're working with general steel, alloy steel, or die steel, this end mill maintains sharp, accurate cuts throughout its service life.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePremium Carbide Material:\u003c\/strong\u003e Solid carbide construction provides outstanding wear resistance and cutting durability.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e4-Flute Design:\u003c\/strong\u003e Optimized for smooth surface finishes and efficient chip evacuation in steel and alloy materials.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExtra Long 75mm Shank:\u003c\/strong\u003e Straight long shank enables deep-reach and extended milling operations without sacrificing rigidity.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Cutting Hardness:\u003c\/strong\u003e Rated up to HRC45, suitable for general steel, alloy steel, and die steel.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHot Hardness \u0026amp; Oxidation Resistance:\u003c\/strong\u003e Maintains cutting performance at elevated temperatures for consistent, reliable machining.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVersatile Industrial Use:\u003c\/strong\u003e Ideal for CNC milling machines and precision machining centers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"border-collapse:collapse; width:100%;\"\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eCAE3-3X3 L75mm HRC45\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eCarbide\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eHead Diameter (d)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e3mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eShank Diameter (D)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e3mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eBlade Length (L1)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e12mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eOverall Length (L)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e75mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eMax Cutting Hardness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eHRC45\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eApplicable Materials\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eGeneral Steel, Alloy Steel, Die Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × 3mm 4-Flute Carbide End Mill (Extra Long Shank 75mm)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eMade in Mainland China.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Actual color may vary slightly from product images due to monitor brightness and lighting conditions. Please allow for minor measurement deviations.\u003c\/p\u003e\n\n\u003ch3\u003eYou May Also Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy\"\u003eAir Compressor Pressure Gauge 0-10\/0-12\/0-25 Bar | DIY Tool\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/electromagnetic-induction-tester-coil-motherboard-fault-detector\"\u003eElectromagnetic Induction Tester – Coil \u0026amp; Circuit Fault Detector\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/360-bicycle-chain-cleaner-tool-gear-cleaning-kit\"\u003e360° Bicycle Chain Cleaner Tool | Bike Gear Cleaning Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/hand-power-tools\" target=\"_blank\" rel=\"noopener\"\u003eOSHA guidance on hand and power tools\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What materials can this 3mm carbide end mill cut?\u003c\/h4\u003e\n\u003cp\u003eA: This 4-flute carbide end mill is designed for general steel, alloy steel, and die steel, with a maximum cutting hardness rating of HRC45. Its solid carbide construction ensures excellent performance across these materials in industrial and CNC milling applications.\u003c\/p\u003e\n\u003ch4\u003eQ: Why choose a 4-flute end mill over a 2-flute design?\u003c\/h4\u003e\n\u003cp\u003eA: A 4-flute end mill provides a smoother surface finish and is better suited for harder materials like steel and alloy. It removes material more efficiently per pass and improves rigidity during cutting, making it the preferred choice for precision industrial milling work.\u003c\/p\u003e\n\u003ch4\u003eQ: Is this end mill compatible with standard CNC milling machines?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The 3mm straight shank is compatible with standard CNC milling machine collets and tool holders that accept 3mm shank diameters. The extra-long 75mm overall length makes it particularly well-suited for deep-reach milling operations.\u003c\/p\u003e\n\u003ch4\u003eQ: What does the extra-long 75mm shank offer compared to standard-length end mills?\u003c\/h4\u003e\n\u003cp\u003eA: The extended 75mm overall length allows the end mill to reach deeper into workpieces and cavities, expanding the range of milling operations you can perform — especially useful for mold making, die machining, and deep-pocket cutting tasks.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What materials can this 3mm carbide end mill cut?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This 4-flute carbide end mill is designed for general steel, alloy steel, and die steel, with a maximum cutting hardness rating of HRC45. 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