{"product_id":"iscar-5902391-threading-insert-4-tpi-acme-ic908-carbide","title":"Iscar 5902391 Threading Insert 4 Tpi Acme IC908 Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ISCAR 5902391 is a solid carbide laydown threading insert designed for external Acme thread cutting at 4 threads per inch (TPI). It carries the IC908 manufacturer grade with a PVD-applied TiAlN coating, offering wear resistance across a broad range of workpiece materials. The insert features a 1\/2 inch (0.5000 inch decimal) inscribed circle and a thickness of 0.188 inches. It is used in right-hand external threading operations and follows the ISO 13399 standard for cutting tool data representation. This insert is part of the ISCARTHREAD series and is intended for installation by machinists and tooling professionals in production and job-shop environments.\u003c\/p\u003e\u003cp\u003eThis insert is suited for external Acme thread forms at 4 TPI on a variety of workpiece materials, including steel, stainless steel, cast iron, non-ferrous metals, and high-temperature alloys, as indicated by the primary workpiece material codes H, K, M, N, P, and S. The Acme thread standard is common in lead screws, power transmission components, and industrial machinery applications. The IC908 grade with TiAlN coating supports use across these material categories with a single insert style, reducing the need for grade changes across diverse jobs.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide construction with PVD TiAlN coating for extended tool life\u003c\/li\u003e\n\u003cli\u003eIC908 grade rated for universal workpiece material compatibility (H, K, M, N, P, S material codes)\u003c\/li\u003e\n\u003cli\u003eRight-hand external Acme thread form at 4 TPI\u003c\/li\u003e\n\u003cli\u003e1\/2 inch inscribed circle (0.5000 inch decimal) laydown insert geometry\u003c\/li\u003e\n\u003cli\u003eComplies with ISO 13399 cutting tool data standard\u003c\/li\u003e\n\u003cli\u003ePart of the ISCARTHREAD series for consistent toolholder compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement threading insert for toolholders accepting 22ER-style laydown inserts within the ISCARTHREAD series.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or tooling technician. Ensure the machine spindle is fully stopped and locked out before changing inserts. Seat the insert firmly and evenly in the toolholder pocket and secure with the appropriate clamping screw to the toolholder manufacturer's specified procedure. Verify thread form and pitch with a thread gauge before running production.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: 22ER\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Size Code\u003c\/strong\u003e: 22\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\u003eCoating\/Finish\u003c\/strong\u003e: TiAlN, PVD Process\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: External\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: Acme\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreads Per Inch\u003c\/strong\u003e: 4 TPI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 1\/2 inch (0.5000 inch decimal)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.188 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material Codes\u003c\/strong\u003e: H, K, M, N, P, S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: ISO 13399\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: ISCARTHREAD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.024 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 5\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 5902391\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ISCAR","offers":[{"title":"Default Title","offer_id":51741267689778,"sku":"5902391","price":255.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/2d281f421167b0b5ac1cd69c9a7765d4.jpg?v=1788830414","url":"https:\/\/voomisupply.com\/products\/iscar-5902391-threading-insert-4-tpi-acme-ic908-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}