{"product_id":"osg-404-1378-bn-ball-end-mill-0-1575-in-4-flute-carbide","title":"Osg 404-1378-BN Ball End Mill 0.1575 in 4 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 404-1378-BN is a solid carbide ball end mill designed for precision milling across a wide range of workpiece materials. The tool measures 0.1575 inches (3.50 mm) in diameter with a 0.4724 inch (12.00 mm) length of cut and a 51 mm overall length. It features 4 helical flutes with a 30-degree helix angle, a straight-cylindrical shank measuring 4.00 mm in diameter, and a 1.75 mm nose radius. Constructed from micrograin solid carbide and finished uncoated (bright), this end mill suits both roughing and finishing operations. It is a single-end, right-hand cut, right-hand flute tool belonging to the OSG Series 404BN.\u003c\/p\u003e\n\u003cp\u003eThis end mill is suited for machining steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and hard materials. Its compact diameter and standard-length configuration make it appropriate for contouring, slotting, and profiling operations in die and mold work, precision component machining, and general metalworking applications where a small-diameter ball end profile is required. The absence of a coolant-through feature and neck relief reflects its standard-reach, general-purpose design intent.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid micrograin carbide construction for rigidity and wear resistance in demanding materials\u003c\/li\u003e\n  \u003cli\u003e4 helical flutes with 30-degree medium helix angle for efficient chip evacuation\u003c\/li\u003e\n  \u003cli\u003eBall nose profile with 1.75 mm nose radius enables 3D contouring and profiling\u003c\/li\u003e\n  \u003cli\u003eUncoated (bright) finish suited for non-ferrous metals and general-purpose applications\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut and right-hand flute, single-end configuration for standard CNC and manual milling setups\u003c\/li\u003e\n  \u003cli\u003eMill diameter tolerance of +0.00 \/ -0.05 mm for consistent, repeatable fitment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in compatible end mill holders or collet chucks accepting a 4.00 mm straight-cylindrical shank. Rated for steel, stainless steel, cast iron, non-ferrous metal, superalloys, titanium, and hard materials per ISO material codes P, M, K, N, S, and H.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists or tooling technicians using a compatible collet or end mill holder sized for a 4.00 mm shank. Ensure the machine spindle is fully stopped and the tool is secured with appropriate torque to the toolholder manufacturer's specifications before initiating any cut. Verify runout after installation using a dial indicator before committing to a production pass, particularly at this diameter where small deflections affect surface finish and tool life.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.1575 inches (3.50 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.4724 inches (12.00 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 51.00 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 4.00 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNose Radius\u003c\/strong\u003e: 1.75 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 30 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Style\u003c\/strong\u003e: Medium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Helical\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\u003eEnd Configuration\u003c\/strong\u003e: Single End\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\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\u003eCoating \/ Finish\u003c\/strong\u003e: Bright \/ Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Removal Type\u003c\/strong\u003e: Roughing and Finishing\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: +0.00 \/ -0.05 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\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\u003eChipbreaker\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 404BN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Metric\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 27112803\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Weight\u003c\/strong\u003e: 0.2 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: OSG\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 404-1378-BN\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51735996006706,"sku":"404-1378-BN","price":32.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/12b1bfef8f21b0faeec86c623c41723b_3691cca1-9ff5-492f-8c2d-b45c190d5d3e.jpg?v=1788775327","url":"https:\/\/voomisupply.com\/products\/osg-404-1378-bn-ball-end-mill-0-1575-in-4-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}