{"product_id":"osg-vg434-2503-corner-radius-end-mill-0-25in-4-flute-tialn","title":"Osg VG434-2503 Corner Radius End Mill 0.25in 4 Flute Tialn","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG VG434-2503 is a solid carbide corner radius end mill designed for high-performance milling in demanding materials. With a 0.25-inch diameter, 0.03-inch corner radius, and four flutes, it delivers both roughing and finishing capability in a single tool. The TiAlN PVD coating provides thermal resistance and extended tool life in dry or semi-dry cutting conditions. The long-series design features a 0.75-inch length of cut and 2.5-inch overall length. Right-hand cutting and flute direction, combined with center-cutting capability, make this tool suitable for plunge entry and contour work. Installed by machinists and tool-and-die professionals using standard toolholders with straight-cylindrical shank compatibility.\u003c\/p\u003e\u003cp\u003eThis end mill is built for use in ferrous and high-hardness workpiece materials including steel, stainless steel, cast iron, superalloys, titanium, and hard materials. The micrograin carbide substrate supports elevated cutting speeds and feeds in these challenging applications. The normal pitch, spiral flute design with a medium helix angle promotes chip evacuation and surface finish quality. It is well suited for precision die work, aerospace component machining, and general metalworking where corner radii are required to reduce stress concentrations at part features.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e0.03-inch corner radius reduces stress concentrations and improves part geometry at inside corners\u003c\/li\u003e\n\u003cli\u003eTiAlN PVD coating provides heat resistance and extended tool life in ferrous and hard materials\u003c\/li\u003e\n\u003cli\u003eMicrograin solid carbide substrate supports high cutting speeds and feeds\u003c\/li\u003e\n\u003cli\u003eCenter-cutting design allows direct plunge entry without pilot drilling\u003c\/li\u003e\n\u003cli\u003eRight-hand spiral flutes with normal pitch for efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eLong-series length of cut suits deep pocket and contour milling operations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with standard straight-cylindrical shank toolholders. Suitable for machining steel, stainless steel, cast iron, superalloys, titanium, and hard materials per material codes P, M, K, S, and H. Part of the OSG VG434 series.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstall in a clean, properly sized toolholder collet or end mill holder and torque to the toolholder manufacturer specification before use. Inspect the shank and cutting edges for damage before mounting. Ensure the machine spindle is fully stopped before tool changes. Consult the applicable machining data sheet for starting feed rates and speeds when cutting superalloys or hardened materials, as these vary by machine and setup rigidity.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.03 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Type\u003c\/strong\u003e: Corner Radius\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle or Double End\u003c\/strong\u003e: Single\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentercutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\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: Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePitch\u003c\/strong\u003e: Normal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Long\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Solid Carbide, Micrograin Grade\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiAlN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating Classification\u003c\/strong\u003e: PVD\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\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel, Stainless Steel, Cast Iron, Superalloys and Titanium, Hard Material\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: 0.0000 \/ -0.0015 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: h6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\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\u003eExtended Reach\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: VG434\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 27112803\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.2 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: OSG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: VG434-2503\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51738613186866,"sku":"VG434-2503","price":48.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e5e2e4e6af5d26607cd4154cb8dc6c76.jpg?v=1788801769","url":"https:\/\/voomisupply.com\/products\/osg-vg434-2503-corner-radius-end-mill-0-25in-4-flute-tialn","provider":"Voomi Supply","version":"1.0","type":"link"}