{"product_id":"kennametal-4109632-threading-insert-na3r6-kcu25-acme-6-tpi","title":"Kennametal 4109632 Threading Insert NA3R6 KCU25 Acme 6 Tpi","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 4109632 is a carbide threading insert designed for cutting Acme-form threads at 6 TPI on both internal and external applications. It carries the KCU25 manufacturer grade and features a PVD-applied AlTiN finish coating that improves wear resistance and extends tool life in demanding threading operations. Part of the Top Notch series, this right-hand insert uses the NA insert style and has a 29-degree included angle consistent with Acme thread geometry. Insert size is 3, with a cutting tip width of 0.0567 inches and a corner radius of 0.0050 inches. Machinists and CNC operators working with Acme-threaded components in production or repair environments will find this insert suited to their tooling requirements.\u003c\/p\u003e\u003cp\u003eThis insert is used in Acme thread turning operations on lathes and CNC turning centers. Its right-hand cutting orientation suits the majority of standard Acme thread applications, including leadscrew production, power transmission components, and linear actuator components. The insert fits Top Notch series toolholders compatible with size 3 inserts. It is applicable to both internal and external threading passes, making it a versatile choice when a single insert grade needs to cover both bore threading and OD threading on Acme-form workpieces.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eKCU25 carbide grade with PVD AlTiN coating for enhanced wear resistance\u003c\/li\u003e\n\u003cli\u003eAcme thread form, 29-degree included angle, 6 TPI internal and external capability\u003c\/li\u003e\n\u003cli\u003eRight-hand cutting orientation in Top Notch size 3 insert platform\u003c\/li\u003e\n\u003cli\u003eCorner radius of 0.0050 inches for precise thread root geometry\u003c\/li\u003e\n\u003cli\u003eCutting tip width of 0.0567 inches matching Acme 6 TPI form requirements\u003c\/li\u003e\n\u003cli\u003eCompact insert thickness of 0.1949 inches fits standard Top Notch holders\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with Top Notch series toolholders accepting size 3 threading inserts. Suitable for both internal and external Acme thread turning applications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThreading inserts should be installed by a qualified machinist following the toolholder manufacturer's clamping specifications. Ensure the machine spindle is fully stopped and the toolholder is clean and free of chips before seating the insert. Verify correct insert orientation for right-hand threading before engaging the cut. Do not exceed the recommended depth of cut or feed rate for the KCU25 grade to avoid premature edge failure.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: NA\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\u003eThread Standard\u003c\/strong\u003e: Acme\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: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal Pitch\u003c\/strong\u003e: 6 TPI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 29 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Size\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: Top Notch\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\u003eWidth of Cutting Tip\u003c\/strong\u003e: 0.0567 inches (1.44 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0050 inches (0.13 mm)\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\u003eTip to Top of Insert\u003c\/strong\u003e: 0.1492 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.025 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23291804\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 4109632\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51729522688306,"sku":"4109632","price":210.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/80b13ee75e6823157504b99307b732e0_a69b93d7-683f-4e9a-a31c-46dde606669c.jpg?v=1788705658","url":"https:\/\/voomisupply.com\/products\/kennametal-4109632-threading-insert-na3r6-kcu25-acme-6-tpi","provider":"Voomi Supply","version":"1.0","type":"link"}