{"product_id":"iscar-3409663-threading-insert-08ir-13-tpi-un-ic908","title":"Iscar 3409663 Threading Insert 08IR 13 Tpi Un IC908","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ISCAR 3409663 is a laydown-style internal threading insert designed for cutting Unified National (UN) thread forms at 13 threads per inch (TPI). Ground from solid carbide in the IC908 grade, this insert delivers consistent thread geometry in ferrous and difficult-to-machine materials where edge wear resistance and heat toughness are critical. The 08IR series designation identifies the insert size and profile, while the 60-degree included angle matches standard UN and Metric thread forms. The Z chipbreaker geometry promotes controlled chip evacuation during internal threading passes. Machinists and CNC lathe operators working in production or job-shop environments rely on this grade for threading operations requiring tight tolerances.\u003c\/p\u003e\n\u003cp\u003eThis insert is suited for internal threading on CNC turning centers and manual lathes where UN-standard threads are being cut in steel, stainless, or alloy workpieces. At 13 TPI, it covers a range of common fastener and fitting thread pitches used across general machining, hydraulic component production, and precision part manufacturing. Right-hand thread cutting orientation is standard on this insert, making it compatible with conventional internal threading toolholders in the IR series.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eIC908 carbide grade for wear resistance and thermal toughness in demanding threading applications\u003c\/li\u003e\n  \u003cli\u003e08IR series, right-hand internal threading geometry with 60-degree included angle for UN thread forms\u003c\/li\u003e\n  \u003cli\u003e13 TPI cutting edge matches standard UN fastener and fitting thread pitches\u003c\/li\u003e\n  \u003cli\u003eZ chipbreaker promotes controlled chip flow during internal boring and threading passes\u003c\/li\u003e\n  \u003cli\u003eCorner radius of 0.0055 inches for accurate thread root form and reduced notching\u003c\/li\u003e\n  \u003cli\u003eLaydown insert style for positive seating and repeatable indexing in compatible toolholders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with ISCAR IR series internal threading toolholders accepting 08IR laydown inserts. Verify toolholder pocket geometry and insert seat dimensions before installation.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist. Power down and lock out the machine spindle before indexing or replacing the insert. Use the correct torque wrench and clamping screw specified by the toolholder manufacturer to seat the insert without cracking the carbide. Inspect the insert seat and clamping pocket for chips or debris before seating a new insert, as contamination can cause insert rocking and premature edge failure.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Series\u003c\/strong\u003e: IR\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: 08IR\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Size Code\u003c\/strong\u003e: 08\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: IC908\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UN (Unified National)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreads Per Inch\u003c\/strong\u003e: 13 TPI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: Internal\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\u003eChipbreaker\u003c\/strong\u003e: Z\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0055 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.0790 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 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: ISCAR\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 3409663\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ISCAR","offers":[{"title":"Default Title","offer_id":67620625350962,"sku":"3409663","price":224.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d2fe4b5d78b4aef2599bae455abd9fd6_d937e153-82c8-4934-aa12-37c2063e41b8.jpg?v=1790440289","url":"https:\/\/voomisupply.com\/products\/iscar-3409663-threading-insert-08ir-13-tpi-un-ic908","provider":"Voomi Supply","version":"1.0","type":"link"}