{"product_id":"osg-1252102-spiral-flute-pipe-tap-1-2-14-npt-hss","title":"Osg 1252102 Spiral Flute Pipe Tap 1\/2-14 Npt Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 1252102 is a spiral flute pipe tap designed for cutting 1\/2-14 NPT internal pipe threads in production and maintenance applications. Built from high-speed steel (HSS) with an elektraLUBE finish, it features a 15-degree helix angle and four flutes that channel chips up and out of the hole during tapping. The bottoming chamfer allows threading close to the bottom of a blind hole where standard taper-chamfer taps cannot reach. With an overall length of 3-1\/8 inches and a thread length of 1-3\/8 inches, this tap suits both hand and machine tapping operations in pipe fitting work.\u003c\/p\u003e\u003cp\u003eThis tap is intended for tapping NPT-standard pipe threads in metal workpieces, including ferrous and non-ferrous stock. It is commonly used in plumbing, HVAC, and industrial pipe fitting applications where a leak-free tapered pipe thread is required. The spiral flute design makes it particularly suited for blind-hole tapping where straight-flute taps would pack chips into the bore. Machinists, pipefitters, and maintenance technicians use this tap in drill presses, CNC tapping machines, and tapping arms.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e1\/2-14 NPT thread form for standard tapered pipe thread connections\u003c\/li\u003e\n\u003cli\u003e15-degree helix angle with 4 right-hand spiral flutes for upward chip evacuation\u003c\/li\u003e\n\u003cli\u003eBottoming chamfer for threading close to the base of blind holes\u003c\/li\u003e\n\u003cli\u003eHigh-speed steel construction for durability across a range of metalworking applications\u003c\/li\u003e\n\u003cli\u003eelektraLUBE coating reduces friction and extends tool life between resharpening cycles\u003c\/li\u003e\n\u003cli\u003eSeries S125 design with no coolant-through requirement, compatible with flood or manual lubrication\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct selection for 1\/2-14 NPT spiral flute tapping operations in standard machine tapping and hand tapping setups that accept a 0.6875-inch shank diameter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tap should be installed by a qualified machinist or pipefitter familiar with NPT thread standards and tapping equipment. Ensure the workpiece is securely fixtured and the tap is properly aligned before beginning the cut to prevent tap breakage. Apply appropriate cutting fluid or tap oil before and during the operation. Disconnect or de-energize machine spindles before changing or inspecting taps.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/2-14 NPT\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\u003eFlute Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 15 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfer\u003c\/strong\u003e: Bottoming\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: elektraLUBE\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3-1\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 1-3\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.6875 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.5150 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProjection\u003c\/strong\u003e: 0.4687 inches\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: S125\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.285 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: 1252102\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51743124619570,"sku":"1252102","price":171.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/734c4d44ef9337353431df637fb101a3.jpg?v=1788842967","url":"https:\/\/voomisupply.com\/products\/osg-1252102-spiral-flute-pipe-tap-1-2-14-npt-hss","provider":"Voomi Supply","version":"1.0","type":"link"}