{"product_id":"tungaloy-5901584-threading-insert-16ir115npt-b-ah725","title":"Tungaloy 5901584 Threading Insert 16IR115NPT-B AH725","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe TUNGALOY 5901584 is a solid carbide laydown threading insert designed for cutting internal NPT tapered pipe threads. Designated style 16IR115NPT-B in grade AH725, it features a PVD-applied TiAlN coating that improves wear resistance and thermal stability across a wide range of workpiece materials. The insert carries a 60-degree included angle and a 0.09 mm corner radius, making it suited for producing the tapered flank geometry required by NPT thread standards. Machining technicians and CNC operators install this insert into compatible laydown-style threading toolholders on lathes and turning centers.\u003c\/p\u003e\n\u003cp\u003eThis insert is intended for right-hand internal NPT threading operations. The AH725 grade with TiAlN coating is rated for universal workpiece material compatibility, covering steel, stainless, cast iron, non-ferrous alloys, high-temp alloys, and aluminum. It is a practical choice for shops producing pipe fittings, fluid system components, and instrumentation connections that require leak-resistant tapered thread forms compliant with NPT standards.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide substrate with PVD TiAlN coating for extended tool life across diverse workpiece materials\u003c\/li\u003e\n  \u003cli\u003e16IR insert style for right-hand internal NPT threading at 11.5 threads per inch\u003c\/li\u003e\n  \u003cli\u003e60-degree included angle matches NPT thread form geometry\u003c\/li\u003e\n  \u003cli\u003eB chipbreaker designation for controlled chip flow during threading passes\u003c\/li\u003e\n  \u003cli\u003e3\/8 inch inscribed circle; 1.5 mm (0.059 inches) thickness in a compact laydown profile\u003c\/li\u003e\n  \u003cli\u003eTAC TungThread series with ISO-standard construction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-use insert for laydown threading toolholders accepting 16IR-style inserts within the TUNGALOY TAC TungThread series. Confirmed workpiece material codes include H, K, M, N, P, and S per supplier specifications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis insert is installed and changed by machinists or CNC tooling technicians; ensure the machine spindle is fully stopped and the toolholder is de-energized before seating or removing the insert. Use the appropriate torx or clamping screw specified by the toolholder manufacturer to secure the insert  -  do not overtighten. Verify insert orientation for right-hand internal threading before beginning a pass, and confirm the programmed thread pitch matches 11.5 threads per inch before cutting.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: 16IR\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Size Code\u003c\/strong\u003e: 16\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: AH725\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: TiAlN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: PVD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: Internal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: 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\u003eInsert Hand\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 60 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 3\/8 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 1.5 mm (0.059 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.09 mm (0.0035 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChipbreaker\u003c\/strong\u003e: B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: TAC TungThread\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Universal (H, K, M, N, P, S)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ISO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.015 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23291804\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: TUNGALOY\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 5901584\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TUNGALOY","offers":[{"title":"Default Title","offer_id":52038400966962,"sku":"5901584","price":38.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/694ba21ec4a73bae8545741304411364.jpg?v=1790025347","url":"https:\/\/voomisupply.com\/products\/tungaloy-5901584-threading-insert-16ir115npt-b-ah725","provider":"Voomi Supply","version":"1.0","type":"link"}