{"product_id":"vargus-80721-carbide-thread-mill-insert-un-12-tpi","title":"Vargus 80721 Carbide Thread Mill Insert Un 12 Tpi","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VARGUS 80721 is a carbide thread mill insert designed for internal thread milling applications on UN unified national thread forms. The insert carries a TiCN (titanium carbonitride) coating applied via PVD process, which improves surface hardness and wear resistance compared to uncoated carbide. Manufactured to the VBX grade specification and conforming to ANSI B1.1:74, this insert is suited for machining steel and ferrous workpiece materials at 12 threads per inch. Machinists and toolroom technicians install this insert into compatible R40I-style thread mill bodies as a replacement cutting element.\u003c\/p\u003e\n\u003cp\u003eThis insert is intended for internal thread milling operations where a UN thread form is required at 12 TPI. Typical applications include production machining and job shop work on ferrous materials classified under the P workpiece material group, which covers carbon steels, alloy steels, and cast steels. The 12 TPI pitch and UN profile make this insert appropriate for a range of standard fastener thread sizes used across general mechanical and industrial applications. It is sold individually as a single insert.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCarbide substrate with TiCN PVD coating for extended tool life on ferrous materials\u003c\/li\u003e\n  \u003cli\u003eInternal thread milling geometry for UN unified national thread form\u003c\/li\u003e\n  \u003cli\u003e12 TPI pitch conforms to ANSI B1.1:74 standard\u003c\/li\u003e\n  \u003cli\u003eInsert style R40I, size code 40 for compatibility with matching tool bodies\u003c\/li\u003e\n  \u003cli\u003eVBX manufacturer grade designation for consistent quality control\u003c\/li\u003e\n  \u003cli\u003eP-group workpiece material rating covering carbon and alloy steels\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a replacement insert for R40I-style thread mill tool bodies requiring a size 40 insert. Confirm holder compatibility with the R40I insert style and size code 40 before ordering.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInserts of this type are installed by qualified machinists or toolroom technicians using the appropriate torx or hex key specified by the tool body manufacturer. Ensure the machine spindle is fully stopped and locked out before changing inserts. Seat the insert fully against the pocket locating surfaces and verify there is no movement before resuming cutting operations. Follow the tool body manufacturer torque guidance for the clamping screw to avoid insert damage or poor seating.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: R40I\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Size Code\u003c\/strong\u003e: 40\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiCN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: PVD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: VBX\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Application\u003c\/strong\u003e: Internal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Form\u003c\/strong\u003e: UN (Unified National)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreads Per Inch\u003c\/strong\u003e: 12 TPI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWorkpiece Material Group\u003c\/strong\u003e: P (carbon steel, alloy steel, cast steel)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: ANSI B1.1:74\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 pounds\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: VARGUS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 80721\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VARGUS","offers":[{"title":"Default Title","offer_id":67918048690482,"sku":"80721","price":139.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/eda63a7a7d30a8990aca62b5ab07c6be_6d69118c-34e2-4950-99d5-820e61325dba.jpg?v=1791266965","url":"https:\/\/voomisupply.com\/products\/vargus-80721-carbide-thread-mill-insert-un-12-tpi","provider":"Voomi Supply","version":"1.0","type":"link"}