{"product_id":"iscar-5901961-laydown-threading-insert-16er16un-ic908","title":"Iscar 5901961 Laydown Threading Insert 16ER16UN IC908","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ISCAR 5901961 is a laydown-style carbide threading insert designed for external UN thread forms. It carries the IC908 grade designation, a PVD-coated solid carbide with a TiAlN finish engineered for wear resistance and thermal stability at the cutting edge. The insert cuts right-hand external threads at 16 threads per inch, fits a 3\/8-inch (0.375 inch) inscribed circle toolholder seat, and measures 0.143 inches thick. It is intended for use on CNC lathes and turning centers by machinists and toolroom technicians performing precision threading operations.\u003c\/p\u003e\u003cp\u003eThis insert is suited for single-point threading passes on a wide range of workpiece materials. The IC908 grade with PVD coating covers universal application across carbon steels, alloy steels, cast irons, stainless, high-temperature alloys, and non-ferrous materials, corresponding to ISO material groups P, M, K, N, S, and H. It fits standard 16ER-style laydown threading toolholders. Typical use is production threading on shaft diameters requiring unified national (UN) thread forms in both job-shop and production-floor environments.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eIC908 solid carbide grade with PVD-applied TiAlN coating for elevated cutting-edge hardness and heat resistance\u003c\/li\u003e\n\u003cli\u003e16 TPI external UN thread standard, right-hand cut\u003c\/li\u003e\n\u003cli\u003e16ER insert style with 3\/8-inch inscribed circle (0.375 inch) for compatibility with standard 16ER toolholders\u003c\/li\u003e\n\u003cli\u003e0.143-inch insert thickness for precise seating in laydown-style pockets\u003c\/li\u003e\n\u003cli\u003eCorner radius of 0.18 mm for defined thread root geometry\u003c\/li\u003e\n\u003cli\u003eCompliant with ISO 13399 tooling data standards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a direct-fit replacement for standard 16ER-style laydown threading toolholders requiring a 3\/8-inch inscribed circle insert with a UN external thread form. Compatible with workpiece material grades C1, C2, C6, and C7 per ISO designation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis insert is installed by a machinist or toolroom technician on a CNC lathe or manual turning center. Power down and lock out the spindle before changing inserts. Seat the insert fully into the toolholder pocket and torque the clamping screw to the toolholder manufacturer's specification — do not use impact tools on insert clamping hardware. Verify thread pitch and insert orientation before taking a first threading pass.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: 16ER\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Size Code\u003c\/strong\u003e: 16\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 Coated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UN External\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreads Per Inch\u003c\/strong\u003e: 16\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 3\/8 inch (0.375 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.143 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.18 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade Compatibility\u003c\/strong\u003e: C1, C2, C6, C7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material Code\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\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1 pound\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: 5901961\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ISCAR","offers":[{"title":"Default Title","offer_id":51751142687026,"sku":"5901961","price":178.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b6aa8a6c30296a4372293839bc0db614.jpg?v=1788921848","url":"https:\/\/voomisupply.com\/products\/iscar-5901961-laydown-threading-insert-16er16un-ic908","provider":"Voomi Supply","version":"1.0","type":"link"}