{"product_id":"century-drill-tool-co-inc-98303-npt-hex-threading-die","title":"Century Drill Tool Co Inc 98303 Npt Hex Threading Die","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe CENTURY DRILL TOOL CO INC 98303 is a 3\/8 inch x 18 National Pipe Taper (NPT) hexagon threading die designed for hand threading operations across a wide range of materials. Manufactured from carbon steel, the die measures 1-7\/16 inches across the hex. It is intended for rethreading applications where high-accuracy tolerance is not critical, making it a practical choice for field repairs and maintenance work in plumbing and pneumatic systems. Licensed plumbers, pipefitters, and experienced maintenance technicians are the primary installers for this type of tooling.\u003c\/p\u003e\u003cp\u003eThis die is well suited for residential and light commercial plumbing lines, air supply lines, and general pipe threading work where NPT connections are required. The hexagonal profile allows it to be driven with a standard hex die stock for controlled threading, or used directly with a wrench or socket when working in confined spaces with limited clearance. It is a useful addition to a service technician's threading kit for rethreading existing pipe ends or cutting new threads on replacement pipe.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e3\/8 inch x 18 TPI National Pipe Taper thread form for standard NPT fittings\u003c\/li\u003e\n\u003cli\u003e1-7\/16 inch hex body — compatible with standard hexagon die stocks\u003c\/li\u003e\n\u003cli\u003eCan be driven with a wrench or socket in tight or confined spaces\u003c\/li\u003e\n\u003cli\u003eCarbon steel construction for cutting threads in a variety of materials\u003c\/li\u003e\n\u003cli\u003eSuitable for plumbing and air line rethreading where tolerance precision is not critical\u003c\/li\u003e\n\u003cli\u003eDesigned for hand threading work — no lathe or power threading machine required\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with standard hexagon die stocks that accept a 1-7\/16 inch hex die. Suitable for hand threading NPT pipe connections in plumbing and compressed air applications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis die is intended for hand threading and should be used with the appropriate hexagon die stock or a suitable wrench or socket. Ensure the pipe or fitting end is clean, deburred, and properly supported before threading. Apply cutting oil to the die and workpiece to reduce friction and improve thread quality. Follow applicable plumbing and mechanical codes, such as the IPC or IFGC, when making pipe connections in regulated systems.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 3\/8 inch x 18 NPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAcross Hex\u003c\/strong\u003e: 1-7\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDie Style\u003c\/strong\u003e: Hexagon\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Form\u003c\/strong\u003e: National Pipe Taper (NPT)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Carbon Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.9 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: EA\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: CENTURY DRILL TOOL CO INC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 98303\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CENTURY DRILL \u0026 TOOL","offers":[{"title":"Default Title","offer_id":51558945390898,"sku":"98303","price":86.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/98777f699e0334c71401f6dfca865d26.jpg?v=1786423706","url":"https:\/\/voomisupply.com\/products\/century-drill-tool-co-inc-98303-npt-hex-threading-die","provider":"Voomi Supply","version":"1.0","type":"link"}