{"product_id":"seco-74018666-tcmt-turning-insert-tp40-triangle-carbide","title":"Seco 74018666 Tcmt Turning Insert TP40 Triangle Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SECO 74018666 is a TCMT-style triangular turning insert designed for general-purpose metal cutting on CNC lathes and turning centers. It carries the industry standard designation TCMT32.52-F2 and is manufactured from solid carbide with a multilayer CVD coating stack of TiC, TiCN, and TiN. The TP40 manufacturer grade targets steel and stainless steel applications where edge toughness and wear resistance are both required. The F2 chip breaker geometry provides a positive rake angle and a honed cutting edge, supporting stable chip formation across a range of depths of cut. The insert seats in screw-lock toolholders and offers three usable cutting edges per insert.\u003c\/p\u003e\u003cp\u003eThis insert is suited for external turning, facing, boring, and back turning operations on steel and stainless steel workpieces in both production and job-shop environments. The neutral hand orientation makes it compatible with standard right-hand TCMT screw-on toolholders used in most CNC and manual turning applications. The ISO code equivalent is TCMT16T308-F2, which is useful when cross-referencing with toolholder catalogs or international procurement systems. Material grades P40, M35, and M40 indicate coverage across medium to heavy interrupted and continuous cuts on carbon steel and austenitic stainless steel. This insert conforms to both ANSI and ISO standards, ensuring dimensional interchangeability within the TCMT insert family.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMultilayer CVD coating (TiC, TiCN, TiN) for wear resistance and thermal stability on ferrous materials\u003c\/li\u003e\n\u003cli\u003eF2 chip breaker with positive rake and honed cutting edge for controlled chip formation\u003c\/li\u003e\n\u003cli\u003eThree cutting edges per insert for extended tool life per unit\u003c\/li\u003e\n\u003cli\u003eScrew-lock holding method for secure, repeatable seating in TCMT toolholders\u003c\/li\u003e\n\u003cli\u003eCompatible with back turning, boring, facing, and external turning operations\u003c\/li\u003e\n\u003cli\u003eConforms to ANSI and ISO standards for dimensional interchangeability\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in TCMT screw-lock turning toolholders. Primary workpiece materials are steel (ISO material code P) and stainless steel (ISO material code M). ISO equivalent designation is TCMT16T308-F2. Material grades P40, M35, and M40 apply.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by machining technicians using the appropriate TCMT screw-lock toolholder and a torx or hex key to secure the clamp screw. Power down and lock out the machine spindle before indexing or replacing inserts. Inspect the insert pocket and seating surface for chips or debris before seating a new insert, as contamination affects edge repeatability. Do not exceed the toolholder manufacturer's recommended clamping torque for the insert screw.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: TCMT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustry Standard Number\u003c\/strong\u003e: TCMT32.52-F2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: TCMT16T308-F2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: Triangle (60 degrees included angle)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: TP40\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: P40, M35, M40\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiC, TiCN, TiN (Multilayer CVD)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: F2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRake\u003c\/strong\u003e: Positive\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Edge Style\u003c\/strong\u003e: Honed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 3\/8 inches (0.3750 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 1\/32 inches (0.0315 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 5\/32 inches (0.1563 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 0.6496 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.1772 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 0.5709 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 7 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance Code\u003c\/strong\u003e: C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance Code\u003c\/strong\u003e: M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Cutting Edges\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Screw\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel, Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Use Application\u003c\/strong\u003e: Back Turning, Boring, Facing, Turning\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI, ISO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23242105\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1 per package\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 10\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SECO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 74018666\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SECO TOOLS","offers":[{"title":"Default Title","offer_id":51557835374898,"sku":"74018666","price":238.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b231cea03938d601b11b8c7345194d7e.jpg?v=1786396436","url":"https:\/\/voomisupply.com\/products\/seco-74018666-tcmt-turning-insert-tp40-triangle-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}