{"product_id":"sandvik-coromant-5857570-threading-insert-13-tpi-un","title":"Sandvik Coromant 5857570 Threading Insert 13 Tpi Un","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SANDVIK COROMANT 5857570 is a laydown threading insert engineered for external UN thread cutting on CNC and manual lathes. Part of the CoroThread 266 series, this solid carbide insert carries a PVD-applied TiCrAlN\/TiN coating that extends cutting edge life in both dry and light-coolant threading operations. It produces right-hand external UN threads at 13 threads per inch, with a 60-degree included angle and a single tooth per side. The 3\/8-inch inscribed circle and 5\/32-inch thickness conform to the 266RG-16 insert standard. Machinists and CNC tooling technicians install this insert in compatible 266-series threading toolholders for production threading of steel, stainless, and cast iron workpieces.\u003c\/p\u003e\n\u003cp\u003eThis insert is suited for external UN threading operations in production and job-shop environments on turning centers and engine lathes. The 266RG style seats in laydown-type toolholders indexed to the CoroThread 266 platform. Typical applications include threading fastener blanks, hydraulic fittings, and general mechanical components requiring UN-standard thread forms. The chipbreaker geometry designation A supports standard-pitch threading without secondary chip-control tooling. This insert is sold individually with a minimum order quantity of 10 units.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide substrate with PVD TiCrAlN\/TiN coating for extended wear resistance\u003c\/li\u003e\n  \u003cli\u003eRight-hand external UN thread form at 13 TPI with 60-degree included angle\u003c\/li\u003e\n  \u003cli\u003eCoroThread 266 series, insert style 266RG, size code 16\u003c\/li\u003e\n  \u003cli\u003eSingle cutting tooth per side for precise thread profile control\u003c\/li\u003e\n  \u003cli\u003eChipbreaker geometry A for consistent chip formation on standard-pitch threads\u003c\/li\u003e\n  \u003cli\u003e3\/8-inch inscribed circle; 5\/32-inch thickness for direct laydown seating\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in SANDVIK COROMANT CoroThread 266 series laydown threading toolholders accepting 266RG-16 style inserts. Consult the toolholder designation for correct insert-to-holder matching before installation.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a qualified machinist or CNC tooling technician. Disengage machine power and verify spindle stop before indexing or replacing inserts. Use a calibrated torque wrench and the correct insert screw to seat the insert fully in the pocket — do not overtighten by feel alone. Inspect the insert pocket for debris or seating damage before each insert change to maintain thread-form accuracy.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: 266RG\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Size Code\u003c\/strong\u003e: 16\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UN\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\u003eThreads Per Inch\u003c\/strong\u003e: 13\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 60 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 3\/8 inches (9.53 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 5\/32 inches (3.97 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.1732 inches (4.40 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Teeth Per Side\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChipbreaker\u003c\/strong\u003e: A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: CoroThread 266\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: TiCrAlN\/TiN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: PVD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: 1135\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.13 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: SANDVIK COROMANT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 5857570\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SANDVIK COROMANT","offers":[{"title":"Default Title","offer_id":51749957665074,"sku":"5857570","price":616.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5929439e42fa52d950984d662a610ba4_467b50d9-c6b0-4aba-8f75-0a4cb807584d.jpg?v=1788912625","url":"https:\/\/voomisupply.com\/products\/sandvik-coromant-5857570-threading-insert-13-tpi-un","provider":"Voomi Supply","version":"1.0","type":"link"}