{"product_id":"carmex-12i18unmt7-carbide-thread-mill-insert-18-tpi","title":"Carmex 12I18UNMT7 Carbide Thread Mill Insert 18 Tpi","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CARMEX 12I18UNMT7 is a carbide thread mill insert designed for internal UN threading operations at 18 teeth per inch (TPI). Built from submicron carbide in the MT7 grade, it carries a TiAlN coating that reduces heat buildup and extends tool life in demanding cutting environments. The insert measures 0.114 inches (2.9 mm) thick and follows the 12I insert style. It is installed by machinists and tool-and-die professionals in CNC thread milling applications where precise, repeatable internal thread profiles are required.\u003c\/p\u003e\n\u003cp\u003eThis insert is suited for internal UN thread milling on machining centers and multi-axis CNC equipment. The UN thread standard conforms to ANSI B1.1-1989, making it appropriate for standard unified inch thread forms in both production and job-shop environments. The non-conical geometry supports straight thread milling passes on through-holes and blind bores across a range of ferrous and non-ferrous workpiece materials.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSubmicron carbide substrate in MT7 grade for consistent edge integrity\u003c\/li\u003e\n  \u003cli\u003eTiAlN coating provides thermal resistance and reduced flank wear in high-speed threading\u003c\/li\u003e\n  \u003cli\u003e18 TPI for standard unified inch internal thread profiles\u003c\/li\u003e\n  \u003cli\u003eConforms to ANSI B1.1-1989 UN thread standard\u003c\/li\u003e\n  \u003cli\u003e0.114 inch (2.9 mm) insert thickness for precise seating in compatible toolholders\u003c\/li\u003e\n  \u003cli\u003eNon-conical geometry for straight-wall internal thread milling\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement insert for thread mill bodies accepting the 12I insert style in internal UN threading applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by qualified machinists following standard CNC tooling change procedures. Ensure the spindle is fully stopped and machine power is locked out before seating or removing inserts. Use the correct torx or hex key per the toolholder manufacturer specification to secure the insert without over-torquing the clamping screw. Verify insert seating and runout before resuming cutting operations.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: 12I\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Size Code\u003c\/strong\u003e: 12\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: Submicron\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: MT7\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: TiAlN\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: UN (ANSI B1.1-1989)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTeeth Per Inch\u003c\/strong\u003e: 18\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConical\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.114 inches (2.9 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCertifications\u003c\/strong\u003e: CE, ISO 9001:2015, ISO 13485:2016, ISO 14001:2015, ISO 45001\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: CARMEX\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 12I18UNMT7\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CARMEX","offers":[{"title":"Default Title","offer_id":51972271243570,"sku":"12I18UNMT7","price":411.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0531e3f20c1c006d7f24424e8269e78e.jpg?v=1789965399","url":"https:\/\/voomisupply.com\/products\/carmex-12i18unmt7-carbide-thread-mill-insert-18-tpi","provider":"Voomi Supply","version":"1.0","type":"link"}