{"product_id":"accupro-12184940-ball-end-mill-0-4375-in-4-flute-carbide","title":"Accupro 12184940 Ball End Mill 0.4375 in 4 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 12184940 is a solid carbide ball end mill designed for precision milling operations in ferrous and non-ferrous materials. It carries a 0.4375-inch (7\/16-inch) diameter with a 1-inch length of cut and a 4-inch overall length, placing it in the long-reach category. Four right-hand spiral flutes with a 40-degree helix angle promote efficient chip evacuation and smooth cutting action. Micrograin carbide construction provides wear resistance and edge stability under high-speed machining conditions. The uncoated finish makes it suitable for applications where coatings would be redundant or where regrinding is anticipated. This is a single-end tool with a right-hand cutting direction.\u003c\/p\u003e\u003cp\u003eThis end mill is used in CNC machining centers and manual milling machines for profiling, slotting, and contouring operations that require a ball-nose geometry. The long overall length of 4 inches supports deeper reach into pockets and cavities. It is appropriate for job shops, tool rooms, and production machining environments. The 7\/16-inch shank diameter is a standard size compatible with common collet and end mill holder systems. Machinists and CNC operators handling precision metalwork are the primary users of this tool.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e0.4375-inch (7\/16-inch) ball nose diameter with mill diameter tolerance of +0.000 to -0.002 inches\u003c\/li\u003e\n\u003cli\u003eSolid micrograin carbide construction for edge retention and rigidity\u003c\/li\u003e\n\u003cli\u003e4 right-hand spiral flutes at a 40-degree helix angle for efficient chip removal\u003c\/li\u003e\n\u003cli\u003eLong series at 4 inches overall length with 1-inch length of cut\u003c\/li\u003e\n\u003cli\u003eUncoated finish suitable for regrinding or dry machining applications\u003c\/li\u003e\n\u003cli\u003eSingle-end design with right-hand cutting direction\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard single-end ball end mill with a 7\/16-inch shank diameter, compatible with collet chucks and end mill holders sized for 7\/16-inch shanks in CNC and manual milling setups.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or CNC operator. Secure the 7\/16-inch shank in a properly sized collet or end mill holder, ensuring adequate shank engagement depth per the toolholder specification. Verify spindle runout before committing to finish passes, as micrograin carbide is sensitive to vibration and interrupted cuts. Always power down and lock out the machine before changing tooling.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.4375 inches (7\/16 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: +0.000 to -0.002 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide (Micrograin)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.4375 inches (7\/16 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: -0.0001 to -0.0004 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 40 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\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\u003eSingle or Double End\u003c\/strong\u003e: Single\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Long\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\u003eVariable Index\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.3 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: ACCUPRO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 12184940\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51728194896178,"sku":"12184940","price":91.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ae5541e0ddebb6511c3fecaf75304436.jpg?v=1788689329","url":"https:\/\/voomisupply.com\/products\/accupro-12184940-ball-end-mill-0-4375-in-4-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}