{"product_id":"sandvik-coromant-5757950-threading-insert-acme-4-tpi","title":"Sandvik Coromant 5757950 Threading Insert Acme 4 Tpi","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SANDVIK COROMANT 5757950 is a solid carbide laydown threading insert designed for cutting internal Acme threads in a right-hand orientation. Part of the CoroThread 266 series, this insert carries a TiN coating applied via PVD process, providing surface hardness and wear resistance suited for threading operations in production and job-shop environments. It is sized at a 1\/2 inch (12.70 mm) inscribed circle with a thickness of 0.2190 inches (5.56 mm). The insert operates at 4 threads per inch (TPI) and features a 60-degree included angle with a single tooth per side and an F chipbreaker geometry. It is installed and changed by machinists and CNC tooling technicians on lathes and threading centers.\u003c\/p\u003e\u003cp\u003eThis insert is intended for internal Acme thread applications requiring a right-hand cut. It fits toolholders and boring bars compatible with the CoroThread 266 insert style, size code 22, and is applicable in both production turning and repair threading scenarios. The Acme thread form is commonly used in power transmission components such as lead screws and linear actuators, making this insert relevant in both manufacturing and maintenance machine shop settings. Manufacturer grade 1020 indicates the carbide substrate and coating combination targeted for this thread form and material class.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide substrate with PVD-applied TiN coating for wear resistance\u003c\/li\u003e\n\u003cli\u003eRight-hand internal Acme thread geometry at 4 TPI with 60-degree included angle\u003c\/li\u003e\n\u003cli\u003eCoroThread 266 series insert style, size code 22\u003c\/li\u003e\n\u003cli\u003eF chipbreaker for chip control during internal threading passes\u003c\/li\u003e\n\u003cli\u003e1\/2 inch inscribed circle with 0.2244 inch hole diameter for secure clamping\u003c\/li\u003e\n\u003cli\u003eSingle tooth per side configuration for precise thread form generation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with CoroThread 266 series toolholders and boring bar bodies accepting a size 22 insert with a 1\/2 inch inscribed circle in right-hand internal configurations. Refer to SANDVIK COROMANT CoroThread 266 toolholder selection guides for confirmed holder compatibility.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInsert installation and indexing should be performed by a qualified machinist with the machine fully powered down and spindle locked. Use the appropriate torque wrench and SANDVIK COROMANT clamping hardware specified for the CoroThread 266 toolholder to secure the insert without over-torquing the clamping screw. Inspect the insert seat for chips or debris before seating the new insert. Follow shop safety procedures and machine manufacturer guidelines when setting tool offsets after insert change.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: 266\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Size Code\u003c\/strong\u003e: 22\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\u003eManufacturer Grade\u003c\/strong\u003e: 1020\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: TiN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: PVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: Internal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: Acme\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: 4 TPI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 60 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChipbreaker\u003c\/strong\u003e: F\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\u003eInscribed Circle\u003c\/strong\u003e: 1\/2 inch (12.70 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.2190 inches (5.56 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.2244 inches (5.70 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.31 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: SANDVIK COROMANT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 5757950\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SANDVIK COROMANT","offers":[{"title":"Default Title","offer_id":51741610475826,"sku":"5757950","price":1150.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ccf231290dee11ab915e377269a06c67_0d9c6270-3115-413c-9352-0b2021f45e7a.jpg?v=1788832470","url":"https:\/\/voomisupply.com\/products\/sandvik-coromant-5757950-threading-insert-acme-4-tpi","provider":"Voomi Supply","version":"1.0","type":"link"}