{"product_id":"osg-1315701-interrupted-thread-pipe-tap-1-11-2-npt-hss","title":"Osg 1315701 Interrupted Thread Pipe Tap 1-11\/2 Npt Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 1315701 is a 1-11\/2 NPT interrupted thread pipe tap designed for cutting internal pipe threads in a range of metals. Built from high-speed steel with an oxide finish, it features 5 flutes and a modified bottoming chamfer that reduces the number of teeth in contact with the workpiece at any given moment, lowering torque requirements and improving chip evacuation. The shank diameter is 1.125 inches, the thread length is 1.75 inches, and the overall length is 3.75 inches. It is suited for use in production and maintenance environments where consistent, clean pipe threads are required in ferrous and non-ferrous base materials.\u003c\/p\u003e\u003cp\u003eThis tap is intended for tapping 1-11\/2 NPT tapered pipe threads in materials including aluminum, carbon steel, cast iron, and hardened steel. The interrupted thread geometry makes it particularly effective in tough or stringy materials where chip packing is a concern. It fits standard tap wrenches and CNC tapping setups that accept a 1.125-inch shank. Typical applications include pipe fitting assembly, manifold machining, and maintenance repair operations across industrial, mechanical, and plumbing-related fabrication work.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eInterrupted thread design reduces cutting torque and improves chip clearance\u003c\/li\u003e\n\u003cli\u003eModified bottoming chamfer for controlled thread engagement depth\u003c\/li\u003e\n\u003cli\u003eHigh-speed steel construction handles aluminum, carbon steel, cast iron, and hardened steel\u003c\/li\u003e\n\u003cli\u003eOxide finish provides moderate lubricity and corrosion resistance during cutting\u003c\/li\u003e\n\u003cli\u003e5-flute configuration balances chip load across the cutting teeth\u003c\/li\u003e\n\u003cli\u003eRegular hook geometry suits standard tapping machine and hand-tap applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for cutting 1-11\/2 NPT tapered pipe threads; compatible with standard tap wrenches and tapping chucks that accept a 1.125-inch shank diameter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tap should be installed and operated by a machinist or qualified tradesperson familiar with tapping procedures and appropriate cutting fluid selection for the workpiece material. Always secure the workpiece and ensure the tap is properly aligned before engagement to prevent tap breakage. Use a cutting fluid appropriate for the material being tapped. Follow shop safety protocols and applicable OSHA guidelines when operating tapping equipment.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1-11\/2 NPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreads per Inch\u003c\/strong\u003e: 11.5\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: 5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfer\u003c\/strong\u003e: Modified Bottoming\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHook\u003c\/strong\u003e: Regular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 1.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1.125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.843 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: Oxide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Aluminum, Carbon Steel, Cast Iron, Hardened Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 108G\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.91 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: 1315701\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51739838513458,"sku":"1315701","price":433.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4c92da9b3100aff32aecf0de1c970752_63daaff9-a688-4eef-a5f8-1aae5b940094.jpg?v=1788819428","url":"https:\/\/voomisupply.com\/products\/osg-1315701-interrupted-thread-pipe-tap-1-11-2-npt-hss","provider":"Voomi Supply","version":"1.0","type":"link"}