{"product_id":"tool-flo-0239041ac50e-stub-acme-threading-insert-0-5-in","title":"Tool-flo 0239041AC50E Stub Acme Threading Insert 0.5 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe TOOL-FLO 0239041AC50E is a solid carbide on-edge threading insert designed for cutting Stub Acme thread forms. It features a neutral hand cutting direction, a 0.5-inch inscribed circle, and an AlTiN coating applied via PVD process for extended tool life in demanding threading applications. The insert carries style designation TNMA with a cylindrical hole shape and a cutting tip width of 0.1004 inches and a thickness of 0.1890 inches. It is used in CNC lathes and turning centers by machinists and toolroom professionals performing precision internal or external threading operations where Stub Acme form accuracy is required.\u003c\/p\u003e\n\u003cp\u003eThis insert is suited for threading operations on Stub Acme profiles in both production and job-shop environments. The neutral hand configuration makes it appropriate for use in a range of standard toolholders without a left- or right-hand orientation constraint. The AlTiN PVD coating provides oxidation resistance and hardness retention at elevated cutting temperatures, making it well suited for interrupted cuts, harder steels, and high-speed threading passes. Size code 43 and TNMA style should be matched to compatible TOOL-FLO or equivalent on-edge threading toolholders.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eStub Acme thread standard for trapezoidal thread form cutting\u003c\/li\u003e\n  \u003cli\u003eSolid carbide substrate with AlTiN PVD coating for heat and wear resistance\u003c\/li\u003e\n  \u003cli\u003eNeutral hand cutting direction for versatile toolholder compatibility\u003c\/li\u003e\n  \u003cli\u003e0.5-inch inscribed circle with TNMA insert style designation\u003c\/li\u003e\n  \u003cli\u003eCutting tip width of 0.1004 inches and insert thickness of 0.1890 inches\u003c\/li\u003e\n  \u003cli\u003eCylindrical hole shape for secure on-edge clamping\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in on-edge threading toolholders accepting TNMA-style inserts with a 0.5-inch inscribed circle and size code 43. Verify toolholder specifications against TOOL-FLO insert seating requirements before installation.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist or toolroom technician. Power down and lock out the machine before seating or replacing inserts. Ensure the insert pocket and clamping surfaces are clean and free of chips before seating the insert. Confirm thread form geometry against print specifications before beginning a production run.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: Stub Acme\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: TNMA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Size Code\u003c\/strong\u003e: 43\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.5000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth of Cutting Tip\u003c\/strong\u003e: 0.1004 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.1890 inches\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: AC50E\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\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\u003eHole Shape\u003c\/strong\u003e: Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.05 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: TOOL-FLO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 0239041AC50E\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TOOL-FLO","offers":[{"title":"Default Title","offer_id":67908408213810,"sku":"0239041AC50E","price":43.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0b6dc1998ce44a793af6bb65b0cdca0b.jpg?v=1791183457","url":"https:\/\/voomisupply.com\/products\/tool-flo-0239041ac50e-stub-acme-threading-insert-0-5-in","provider":"Voomi Supply","version":"1.0","type":"link"}