{"product_id":"eagle-cutting-tool-ht-40000-8-p-i-hss-plug-tap-4-inch-8-tpi","title":"Eagle Cutting Tool HT-40000-8-P-I Hss Plug Tap 4 Inch 8 Tpi","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe EAGLE CUTTING TOOL HT-40000-8-P-I is a high-speed steel (HSS) plug tap designed for cutting internal threads in a 4-inch diameter at 8 threads per inch (TPI). The plug tap chamfer style — typically 3 to 5 threads of lead — makes it suitable for through-holes and deep blind holes where a starting chamfer is needed before a bottoming tap is run. HSS construction provides the toughness and heat resistance required for production and repair threading in ferrous metals and many non-ferrous materials. This is an import-grade tool suited for maintenance, repair, and fabrication shops that need reliable threading at a practical price point.\u003c\/p\u003e\u003cp\u003eThis tap is used in heavy-duty threading applications involving large-diameter fasteners, pipe flanges, structural components, and industrial machinery. The 4-inch-8 thread form follows the Unified National Coarse (UNC) standard, making it applicable in general industrial fabrication, equipment repair, and toolroom work. Installation is typically performed by machinists, millwrights, or experienced maintenance technicians working on manual or CNC lathes, mills, or large drill presses with appropriate tapping fixtures.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eHSS construction for toughness and resistance to heat buildup during cutting\u003c\/li\u003e\n\u003cli\u003ePlug chamfer style suits both through-holes and deep blind-hole applications\u003c\/li\u003e\n\u003cli\u003e4-inch-8 UNC thread form for large-diameter industrial fastener applications\u003c\/li\u003e\n\u003cli\u003eImport-grade pricing makes it practical for low-frequency or one-time use jobs\u003c\/li\u003e\n\u003cli\u003eMinimum order quantity of 1 — available as a single unit\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or maintenance tool for any application requiring a 4-inch-8 UNC internal thread in ferrous or non-ferrous base materials.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tap should be installed and operated by qualified machinists or maintenance professionals familiar with large-diameter tapping procedures. Always ensure the workpiece is securely fixtured and properly pilot-drilled to the correct tap drill diameter before beginning the threading operation. Use appropriate cutting fluid for the base material being threaded to extend tool life and improve thread finish. Follow applicable shop safety standards and machine guarding requirements when operating power tapping equipment.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreads Per Inch (TPI)\u003c\/strong\u003e: 8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTap Style\u003c\/strong\u003e: Plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: High-Speed Steel (HSS)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 8.4 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: EAGLE CUTTING TOOL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: HT-40000-8-P-I\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"EAGLE CUTTING TOOL","offers":[{"title":"Default Title","offer_id":51233311162674,"sku":"HT-40000-8-P-I","price":718.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/307622927.png?v=1780097048","url":"https:\/\/voomisupply.com\/products\/eagle-cutting-tool-ht-40000-8-p-i-hss-plug-tap-4-inch-8-tpi","provider":"Voomi Supply","version":"1.0","type":"link"}