{"product_id":"scientific-cutting-tools-as5202-04s-porting-tool-carbide","title":"Scientific Cutting Tools AS5202-04S Porting Tool Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SCIENTIFIC CUTTING TOOLS AS5202-04S is a carbide-tipped porting tool designed to machine O-ring boss port faces and pilot bores in hydraulic and pneumatic tube fittings. It produces a 0.8880-inch spotface diameter with a 7\/16-20 UNJF port thread size, conforming to AS5202 and MS33649 standards. The straight, 3-flute cutting geometry delivers clean, flat seating surfaces in a single operation. The bright, uncoated carbide-tipped construction handles ferrous and non-ferrous workpieces found in fluid power and aerospace-adjacent fabrication environments. Machinists and tool-and-die professionals performing tube port prep work rely on this tool for consistent, repeatable results.\u003c\/p\u003e\n\u003cp\u003eThis porting tool is intended for use on tube assemblies with a 1\/4-inch outside diameter and a Tube Dash Number of 4. It is suited for shop or field porting operations where AS5202 and MS33649 port geometry compliance is required. The plain pilot style and straight shank mount in standard drill press, milling machine, or hand-held power tool setups. Typical applications include fluid power system fabrication, hydraulic manifold porting, and tube fitting seat preparation in industrial and aerospace maintenance environments.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCarbide-tipped construction for durability across ferrous and non-ferrous materials\u003c\/li\u003e\n  \u003cli\u003e0.8880-inch spotface diameter machines a flat, accurate O-ring boss seating surface\u003c\/li\u003e\n  \u003cli\u003e7\/16-20 UNJF port thread size per AS5202 and MS33649 standards\u003c\/li\u003e\n  \u003cli\u003e3-flute straight flute design for clean chip evacuation and surface finish\u003c\/li\u003e\n  \u003cli\u003ePlain pilot with 0.3920-inch minimum and 0.4565-inch maximum pilot diameter for positive tool alignment\u003c\/li\u003e\n  \u003cli\u003e1\/2-inch straight shank fits common drill and milling chucks without special toolholders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for tube workpieces with a 1\/4-inch outside diameter (Tube Dash 4), conforming to AS5202 and MS33649 port specifications. Suitable for O-ring boss port machining in hydraulic and pneumatic tube fitting applications where UNJF thread geometry is required.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis tool is installed and operated by machinists or maintenance technicians performing port facing operations. Secure the straight shank in a rigid drill press, mill, or appropriate power tool chuck before use, and verify pilot diameter fits the pilot bore before engaging the cutter. Always power down and de-energize the workpiece assembly before machining. Follow applicable shop safety standards and manufacturer speed-and-feed recommendations for carbide tooling on the specific workpiece material.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpotface Diameter\u003c\/strong\u003e: 0.8880 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePort Thread Size\u003c\/strong\u003e: 7\/16-20 UNJF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTube Outside Diameter Compatibility\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTube Dash Number\u003c\/strong\u003e: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Pilot Diameter\u003c\/strong\u003e: 0.3920 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Pilot Diameter\u003c\/strong\u003e: 0.4565 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePilot Length\u003c\/strong\u003e: 0.3620 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.1200 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Length\u003c\/strong\u003e: 1.1200 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.5000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 2.0000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Straight\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePilot Type\u003c\/strong\u003e: Plain\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeal Angle\u003c\/strong\u003e: 30 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Carbide-Tipped\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: AS5202, MS33649\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWorkpiece Compatibility\u003c\/strong\u003e: Tubes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.25 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: SCIENTIFIC CUTTING TOOLS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: AS5202-04S\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SCIENTIFIC CUTTING TOOLS","offers":[{"title":"Default Title","offer_id":52025362121010,"sku":"AS5202-04S","price":229.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b4b6ebdc05f11dc6dbb4f66e4b60f284.jpg?v=1790015500","url":"https:\/\/voomisupply.com\/products\/scientific-cutting-tools-as5202-04s-porting-tool-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}