{"product_id":"kennametal-4033882-turning-insert-ntu4r-kcu25-carbide","title":"Kennametal 4033882 Turning Insert NTU4R KCU25 Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KENNAMETAL 4033882 is a carbide turning insert designed for external threading operations on CNC lathes and turning centers. It carries the NTU4R insert style with a KCU25 grade and an AlTiN PVD coating that resists heat and wear during high-speed threading passes. The insert follows a partial profile 60-degree thread standard, making it suitable for cutting threads in the 1.25 to 6.25 mm pitch range (4 to 20 TPI). Right-hand cutting geometry and the Top Notch series mounting system allow secure, repeatable seating in compatible toolholders. Machinists and CNC programmers working in job shops or production turning environments install this insert as part of a qualified threading toolholder assembly.\u003c\/p\u003e\n\u003cp\u003eThis insert is used in external threading applications on turned workpieces where a 60-degree partial profile form is required. The Top Notch series is a common indexable threading platform found in production and job-shop lathes. The 4 to 20 TPI range covers a wide variety of standard fastener and mechanical thread forms, making this insert a practical choice for shops running mixed threading work on steel and other machinable alloys. The KCU25 carbide grade paired with PVD AlTiN coating supports interrupted cuts and variable-material threading runs.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eKCU25 carbide grade with PVD-applied AlTiN coating for extended tool life in external threading\u003c\/li\u003e\n  \u003cli\u003ePartial profile 60-degree thread standard covering 1.25 to 6.25 mm pitch and 4 to 20 TPI\u003c\/li\u003e\n  \u003cli\u003eNTU4R right-hand insert style for use in Top Notch series indexable toolholders\u003c\/li\u003e\n  \u003cli\u003e0.11 mm (0.0045 inch) corner radius for accurate thread root geometry\u003c\/li\u003e\n  \u003cli\u003eInsert thickness of 6.35 mm (0.25 inches) for rigid seating in the pocket\u003c\/li\u003e\n  \u003cli\u003eSingle insert per package with a minimum order quantity of 5 units\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in Top Notch series indexable threading toolholders that accept the NTU insert style. Verify toolholder pocket specifications before installation to confirm proper fit and clamping.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis insert is installed by a qualified machinist or CNC setup technician. Power down and lock out the machine spindle before indexing or replacing inserts. Use the correct torque wrench and clamping screw specified by the toolholder manufacturer — do not overtighten, as this can crack the insert. Confirm insert seating and thread form with a thread gauge before running production parts.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: NTU4R\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: KCU25\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\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: Partial Profile 60 Degree\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: External\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Pitch Range\u003c\/strong\u003e: 1.25 to 6.25 mm \/ 4 to 20 TPI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 60 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.11 mm (0.0045 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 6.35 mm (0.25 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: Top Notch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.031 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1 insert per package\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: 4033882\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51730627264818,"sku":"4033882","price":287.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/c02d30190e65ee43d7ed885731384bc5.jpg?v=1788720515","url":"https:\/\/voomisupply.com\/products\/kennametal-4033882-turning-insert-ntu4r-kcu25-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}