{"product_id":"sandvik-coromant-5757938-laydown-threading-insert","title":"Sandvik Coromant 5757938 Laydown Threading Insert","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SANDVIK COROMANT 5757938 is a solid carbide laydown threading insert from the CoroThread 266 series, designed for external metric threading operations on CNC lathes and turning centers. This single-point insert cuts a 60-degree Metric thread profile with a 1.5 mm pitch and is coated with a PVD-applied TiCrAlN\/TiAlN multilayer finish that improves wear resistance and tool life at elevated cutting temperatures. The right-hand orientation suits conventional external thread turning setups. With a 3\/8-inch (9.53 mm) inscribed circle and a thickness of 5\/32 inch (3.97 mm), the insert seats securely in compatible CoroThread 266 toolholders used in precision machining environments.\u003c\/p\u003e\n\u003cp\u003eThis insert is intended for use in production and job-shop turning applications where repeatable, accurate Metric thread forms are required on external workpiece diameters. Typical materials include steel, alloy steel, and similar medium-to-hard workpiece materials where a Grade 1125 carbide substrate with PVD coating delivers controlled chip formation via the A-style chipbreaker geometry. It is installed and serviced by machinists and CNC tooling technicians working on lathes and multi-axis turning centers.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide substrate with PVD TiCrAlN\/TiAlN coating for extended tool life\u003c\/li\u003e\n  \u003cli\u003e60-degree Metric thread profile at 1.5 mm pitch for standard external threading\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut orientation for conventional external thread turning\u003c\/li\u003e\n  \u003cli\u003eA-style chipbreaker geometry promotes controlled chip evacuation\u003c\/li\u003e\n  \u003cli\u003e3\/8-inch inscribed circle with 0.1732-inch mounting hole diameter for secure toolholder engagement\u003c\/li\u003e\n  \u003cli\u003ePart of the CoroThread 266 series for use with matching 266-series toolholders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with SANDVIK COROMANT CoroThread 266 series threading toolholders that accept the 266RG insert style with a 16 mm insert size code. Confirm toolholder bore and clamping configuration before installation.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInsert replacement should be performed by a qualified machinist with the machine spindle stopped, the program halted, and all axes at a safe home position. Use the appropriate torx or clamping key specified by the toolholder manufacturer to seat the insert; do not overtighten the clamping screw. Verify insert orientation and seating before resuming any cutting cycle. Follow the machine tool builder and tooling manufacturer guidelines for insert indexing and disposal of worn carbide.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: 266\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: 1125\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: Metric 60 Degree\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 60 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePitch\u003c\/strong\u003e: 1.50 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChipbreaker\u003c\/strong\u003e: A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 3\/8 inch (9.53 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 5\/32 inch (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\u003eCoating\/Finish\u003c\/strong\u003e: TiAlN \/ TiCrAlN (PVD Process)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Size Code\u003c\/strong\u003e: 16\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturers Catalog Number\u003c\/strong\u003e: 266RG-16MM01A150M 1125\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.14 pounds\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: 5757938\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SANDVIK COROMANT","offers":[{"title":"Default Title","offer_id":51729311858994,"sku":"5757938","price":567.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/cd94e254890a5252541427527eff509e_a3d1cda3-676c-4a04-93c6-214839f70ecc.jpg?v=1788702772","url":"https:\/\/voomisupply.com\/products\/sandvik-coromant-5757938-laydown-threading-insert","provider":"Voomi Supply","version":"1.0","type":"link"}