{"product_id":"kennametal-4176186-threading-insert-ntb3lb-kcu10-carbide","title":"Kennametal 4176186 Threading Insert NTB3LB KCU10 Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KENNAMETAL 4176186 is a carbide threading insert in the Top Notch series, designed for cutting American Buttress threads on both internal and external workpieces. It carries a KCU10 manufacturer grade and an AlTiN finish applied via PVD coating, which provides hard surface protection suited to demanding threading operations. The insert is left-hand orientation, covers a pitch range of 8 to 16 TPI, and features a corner radius of 0.0065 inches (0.17 mm) with an overall thickness of 0.1949 inches (4.95 mm). Machinists and toolroom professionals use this insert in compatible Top Notch toolholders on CNC lathes and manual turning equipment.\u003c\/p\u003e\n\u003cp\u003eThis insert is used in production and job-shop environments where American Buttress thread profiles are required on parts such as pipe fittings, actuator stems, and heavy mechanical assemblies. The left-hand cutting geometry makes it suitable for workpieces that require reverse-direction threading. It handles both internal and external thread applications, giving shops a single insert style for varied Buttress threading work. Sold individually per package with a minimum order quantity of 5 units.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eKCU10 carbide grade with PVD-applied AlTiN coating for wear resistance\u003c\/li\u003e\n  \u003cli\u003eAmerican Buttress thread standard, internal and external capability\u003c\/li\u003e\n  \u003cli\u003eLeft-hand insert orientation\u003c\/li\u003e\n  \u003cli\u003ePitch range: 8-16 TPI\u003c\/li\u003e\n  \u003cli\u003eCorner radius: 0.0065 inches (0.17 mm) for precise thread form\u003c\/li\u003e\n  \u003cli\u003eTop Notch series insert style NTB, Insert Size 3\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with compatible Kennametal Top Notch series threading toolholders that accept NTB style, size 3 inserts. Confirm toolholder acceptance of left-hand geometry before installation.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by qualified machinists or toolroom technicians. Ensure the machine spindle is fully stopped and the toolholder is secure before seating or replacing the insert. Use the correct torque wrench and insert screw per the toolholder manufacturer specification to avoid cracking the carbide. Inspect the insert pocket for chips or debris before seating to ensure proper insert contact and thread form accuracy.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: NTB\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: KCU10\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish Coating\u003c\/strong\u003e: AlTiN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: PVD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: American Buttress\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: Internal and External\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Left Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInternal Pitch\u003c\/strong\u003e: 8-16 TPI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Size\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0065 inches (0.17 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTip to Top of Insert\u003c\/strong\u003e: 0.0122 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.1949 inches (4.95 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 9.3 x 3.8 x 1.2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.027 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eItem Package Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 5\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: KENNAMETAL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 4176186\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51744890323250,"sku":"4176186","price":242.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/36e8df2b1578be904395c2ea0848193f.jpg?v=1788861953","url":"https:\/\/voomisupply.com\/products\/kennametal-4176186-threading-insert-ntb3lb-kcu10-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}