{"product_id":"sandvik-coromant-5758109-threading-insert-4-tpi-stub-acme","title":"Sandvik Coromant 5758109 Threading Insert 4 Tpi Stub Acme","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SANDVIK COROMANT 5758109 is a solid carbide laydown threading insert from the CoroThread 266 series, designed for cutting right-hand internal Stub Acme threads. It runs at 4 threads per inch (TPI) with a 1\/2-inch inscribed circle (12.70 mm) and a thickness of 0.2190 inch (5.56 mm). The insert carries a TiN coating applied via PVD process, which improves surface hardness and wear resistance during threading operations. Manufacturer grade 1020 supports general-purpose carbide threading across a range of ferrous and non-ferrous workpiece materials. Installation is performed by machining professionals operating CNC lathes or manual threading setups.\u003c\/p\u003e\u003cp\u003eThis insert is suited for internal threading applications requiring Stub Acme thread form on lathes and turning centers. The Stub Acme profile is commonly found in power transmission components, lead screws, and jack assemblies machined in job shops and production environments. The CoroThread 266 insert style accommodates precision threading where consistent thread form, controlled chip evacuation via the F chipbreaker, and repeatable depth are required. This part is sold individually with a minimum order quantity of 10 units.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide construction with PVD-applied TiN coating for wear resistance\u003c\/li\u003e\n\u003cli\u003eRight-hand internal Stub Acme thread form at 4 TPI\u003c\/li\u003e\n\u003cli\u003e1\/2-inch (12.70 mm) inscribed circle for accurate toolholder seating\u003c\/li\u003e\n\u003cli\u003eF chipbreaker geometry for controlled chip flow during internal threading\u003c\/li\u003e\n\u003cli\u003e60-degree included angle; single tooth per side for precise thread profile\u003c\/li\u003e\n\u003cli\u003ePart of the CoroThread 266 series for consistent insert-to-holder indexing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with CoroThread 266 series toolholders that accept the 22-size insert with the 266RL insert style designation. Verify toolholder bore and insert seat geometry before installation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and indexing should be performed by a qualified machinist or tooling technician. Power down and lock out the machine spindle before changing or indexing the insert. Use the correct Torx or insert-clamping key specified by the toolholder manufacturer to secure the insert; do not overtighten by hand or with non-specified tools. Confirm thread form, TPI, and hand of thread match the workpiece drawing before commencing the threading pass.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Series\u003c\/strong\u003e: CoroThread 266\u003c\/li\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\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\u003eThread Type\u003c\/strong\u003e: Right Hand Internal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: Stub 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\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\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 inch (5.56 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.2244 inch (5.70 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\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\u003ePackage Dimensions\u003c\/strong\u003e: 3.74 inches L x 1.54 inches W x 0.43 inches H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.31 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: 10\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: 5758109\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SANDVIK COROMANT","offers":[{"title":"Default Title","offer_id":51730267767090,"sku":"5758109","price":1154.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ccf231290dee11ab915e377269a06c67_828793d0-603e-4bfc-9337-f417a561d1b3.jpg?v=1788714326","url":"https:\/\/voomisupply.com\/products\/sandvik-coromant-5758109-threading-insert-4-tpi-stub-acme","provider":"Voomi Supply","version":"1.0","type":"link"}