{"product_id":"osg-1663100217-thread-mill-1-4-18-nptf-5-flute-solid-carbide","title":"Osg 1663100217 Thread Mill 1\/4-18 Nptf 5 Flute Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 1663100217 is a helical flute thread mill designed for cutting 1\/4-18 NPTF tapered pipe threads in solid carbide construction. It features 5 right-hand flutes with an EgiAs coating for improved wear resistance and tool life in demanding materials. The shank diameter is 0.5000 inches with a cutting diameter of 0.3810 inches and a length of cut of 0.6110 inches. This tool is used by machinists and toolroom professionals on CNC machining centers where precise internal pipe thread forms are required in a single helical interpolation pass.\u003c\/p\u003e\u003cp\u003eThis thread mill is suited for producing NPTF tapered pipe threads in ferrous and non-ferrous materials across precision machining applications. The 5-flute geometry supports efficient chip evacuation while maintaining thread form accuracy at 18 teeth per inch. It is appropriate for use in production environments where thread milling is preferred over tapping due to material hardness, thread tolerance requirements, or the need to produce threads close to a shoulder. The solid carbide substrate provides the rigidity needed for consistent thread geometry.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eNPTF tapered pipe thread form at 1\/4-18 for pressure-tight connections\u003c\/li\u003e\n\u003cli\u003eSolid carbide construction for rigidity and dimensional stability\u003c\/li\u003e\n\u003cli\u003eEgiAs coating for enhanced surface hardness and reduced friction\u003c\/li\u003e\n\u003cli\u003e5 right-hand helical flutes for efficient chip removal\u003c\/li\u003e\n\u003cli\u003e0.3810 inch cutting diameter with 0.6110 inch length of cut\u003c\/li\u003e\n\u003cli\u003e0.5000 inch shank diameter for standard ER or end mill collet compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use on CNC machining centers capable of helical interpolation for producing NPTF tapered pipe thread forms. Consult OSG Series 16631 documentation for recommended cutting parameters and compatible workpiece materials.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThread milling with this tool requires a CNC control capable of helical interpolation; confirm programming method before use. Secure the shank in a precision collet or milling chuck and verify runout before cutting. Follow the tool manufacturer guidelines for feed rate, spindle speed, and depth of cut specific to the workpiece material. Handle solid carbide tooling carefully to avoid chipping the cutting edges during setup and storage.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-18\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: NPTF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTeeth Per Inch\u003c\/strong\u003e: 18\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 0.3810 inches (0.38 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.5000 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.6110 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: EgiAs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 16631\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 3.8 inches L x 0.85 inches H x 0.75 inches W\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: OSG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1663100217\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51731233177906,"sku":"1663100217","price":440.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/aef4ca125e0516eb6c708ec3eff3a6b5.jpg?v=1788728640","url":"https:\/\/voomisupply.com\/products\/osg-1663100217-thread-mill-1-4-18-nptf-5-flute-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}