{"product_id":"osg-1200700400-npt-pipe-tap-1-4-18-4-flute-hss","title":"Osg 1200700400 Npt Pipe Tap 1\/4-18 4 Flute Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 1200700400 is a standard NPT pipe tap designed for cutting 1\/4-18 tapered pipe threads in a variety of base metals. Built from high-speed steel with a bright, uncoated finish, this tap delivers consistent thread form for pipe fitting and fluid-system assembly applications. It features 4 flutes with a regular hook geometry and a thread length of 1.0625 inches, making it suited for through-thread and moderate-depth pipe tap work. With an overall length of 2.437 inches and a shank diameter of 0.5625 inches, it fits standard tap wrenches and machine holders used by plumbers, pipefitters, and HVAC technicians. The Series 12007 designation places it in OSG standard tooling.\u003c\/p\u003e\u003cp\u003eThis tap is appropriate for threading pipe ports, fittings, and manifolds in residential and commercial plumbing, HVAC refrigerant and gas piping, and general fluid-system fabrication. It cuts NPT taper threads per ANSI\/ASME B1.20.1 standards. Compatible material applications include carbon steel, cast iron, and aluminum, making it a versatile tool for mixed-material trade work. It is sold individually and intended for use in hand-tapping or low-speed machine tapping setups where controlled feed is essential for clean NPT thread form.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e1\/4-18 NPT taper pipe thread form per ANSI\/ASME B1.20.1\u003c\/li\u003e\n\u003cli\u003eHigh-speed steel construction for durability across carbon steel, cast iron, and aluminum\u003c\/li\u003e\n\u003cli\u003e4 flutes with regular hook for chip clearance and thread accuracy\u003c\/li\u003e\n\u003cli\u003eBright, uncoated finish suitable for use with cutting fluid in standard tapping operations\u003c\/li\u003e\n\u003cli\u003eThread length of 1.0625 inches and overall length of 2.437 inches for standard pipe tap geometry\u003c\/li\u003e\n\u003cli\u003eShank diameter of 0.5625 inches fits common tap wrenches and machine holders\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for cutting 1\/4-18 NPT tapered pipe threads in carbon steel, cast iron, and aluminum workpieces. Fits standard tap wrenches and machine tap holders sized for a 0.5625-inch shank.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eNPT pipe taps are installed by licensed plumbers, pipefitters, and HVAC technicians. Before tapping, ensure the pilot hole is drilled to the correct tap drill size for 1\/4-18 NPT per standard reference charts. Apply cutting fluid throughout the tapping operation to reduce heat and extend tool life. For hand tapping, use a calibrated tap wrench and back off periodically to break chips. Never force a tap against resistance, as high-speed steel taps are brittle and susceptible to breakage under side load or binding.\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: NPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHook Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Profile\u003c\/strong\u003e: Standard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 1.0625 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.437 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.5625 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.421 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProjection\u003c\/strong\u003e: 0.459 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: High-Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Carbon Steel, Cast Iron, Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 12007\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: 0.13 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: 1200700400\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51727121482034,"sku":"1200700400","price":89.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e3fe8839876683727f6342f2fcc7c371.jpg?v=1788673704","url":"https:\/\/voomisupply.com\/products\/osg-1200700400-npt-pipe-tap-1-4-18-4-flute-hss","provider":"Voomi Supply","version":"1.0","type":"link"}