{"product_id":"robbjack-nr-404-04-square-end-mill-1-8-in-4-flute-carbide","title":"Robbjack NR-404-04 Square End Mill 1\/8 in 4 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ROBBJACK NR-404-04 is a solid carbide square end mill designed for precision milling in metalworking and machining applications. With a 0.125-inch mill diameter, 0.500-inch length of cut, and 1.500-inch overall length, this tool is built for tight-tolerance work in confined cutting zones. The four-flute, right-hand spiral design with a 30-degree helix angle promotes efficient chip evacuation and stable cutting action. It is uncoated and manufactured to a C2 carbide grade, making it well-suited for use in CNC machining centers and manual mills operated by machinists and tool-and-die professionals.\u003c\/p\u003e\n\u003cp\u003eThis end mill is intended for regular-length slotting, profiling, and peripheral milling operations on ferrous and non-ferrous materials where a small-diameter, high-precision tool is required. The centercutting geometry allows for direct plunge entry, expanding its utility in pocketing operations. The straight cylindrical shank fits standard collet systems without modification. It is a single-end tool from the ROBBJACK NR-404 series, designed for shops requiring consistent dimensional accuracy at the 1\/8-inch diameter range.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction to C2 material grade for rigidity and wear resistance\u003c\/li\u003e\n  \u003cli\u003eFour-flute, right-hand spiral configuration with 30-degree helix angle\u003c\/li\u003e\n  \u003cli\u003eCentercutting geometry supports direct plunge and pocketing operations\u003c\/li\u003e\n  \u003cli\u003eUncoated finish suitable for applications where coating is not required or desired\u003c\/li\u003e\n  \u003cli\u003eStraight cylindrical shank compatible with standard collet and end mill holders\u003c\/li\u003e\n  \u003cli\u003eMill diameter tolerance of plus 0.001 \/ minus 0.000 inches for consistent fit and finish\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-use solid carbide square end mill for standard collet systems accepting a 0.125-inch straight cylindrical shank, typical of CNC machining centers and manual milling machines in the NR-404 series application range.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and tool changes should be performed by a qualified machinist with the spindle fully stopped and power isolated. Ensure the collet or end mill holder is clean and free of debris before seating the shank. Verify runout with a dial indicator after clamping, as small-diameter carbide tools are sensitive to misalignment. Follow your machine tool manufacturer guidelines for recommended speeds and feeds for the material being cut.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.125 inches (1\/8 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.500 inches (1\/2 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.500 inches (1-1\/2 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.125 inches (1\/8 inch)\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\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: C2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 30 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight Cylindrical\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\u003eCoating\u003c\/strong\u003e: Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: plus 0.001 \/ minus 0.000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: minus 0.0001 \/ minus 0.0002 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length Tolerance\u003c\/strong\u003e: plus 0.060 \/ minus 0.060 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: NR-404\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.0625 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: ROBBJACK\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: NR-404-04\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ROBBJACK","offers":[{"title":"Default Title","offer_id":51971984359730,"sku":"NR-404-04","price":42.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a913e66a6f6169f1917b63fcf4a43218_232ad4cb-8b78-4fae-a46f-c13892af0a51.jpg?v=1789959978","url":"https:\/\/voomisupply.com\/products\/robbjack-nr-404-04-square-end-mill-1-8-in-4-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}