{"product_id":"taegutec-scmt120408-mt-tt8115-steel-turning-insert","title":"TaeguTec SCMT120408-MT TT8115 | Square Steel Turning Insert","description":"\u003cdiv style=\"font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 10px;\"\u003e\n\u003cheader style=\"background-color: #47479f; padding: 35px 20px; border-radius: 4px; text-align: center; margin-bottom: 30px;\"\u003e\n\u003ch1 style=\"color: #ffffff; margin: 0; font-size: 26px; font-weight: bold; text-transform: uppercase;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003eTaeguTec SCMT120408-MT TT8115\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"color: #e0e0e0; margin-top: 10px; font-size: 1.1em;\"\u003eHigh-Velocity Steel Turning Specialist: Optimized for ISO P Performance\u003c\/p\u003e\n\u003c\/header\u003e\n\u003csection style=\"margin-bottom: 40px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-left: 5px solid #47479F; padding-left: 15px;\"\u003eProduct Overview\u003c\/h2\u003e\n\u003cdiv style=\"background: #f4f4f9; padding: 25px; border-radius: 4px;\"\u003e\n\u003cp style=\"font-style: italic; color: #444; font-weight: 500;\"\u003e\"Which square positive insert provides the best tool life and chip breaking when machining alloy steel at high speeds?\"\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eTaeguTec SCMT120408-MT TT8115\u003c\/strong\u003e is a high-speed powerhouse designed for \u003cstrong\u003eISO P (Steel)\u003c\/strong\u003e turning. The \u003cstrong\u003eTT8115 grade\u003c\/strong\u003e utilizes a thick CVD coating that acts as a superior thermal barrier, protecting the carbide substrate during intense high-temperature cutting cycles. Paired with the \u003cstrong\u003eMT (Medium)\u003c\/strong\u003e chipbreaker, this insert features a specialized rake angle that ensures smooth chip evacuation in both carbon and alloy steels, preventing \"bird-nesting\" and protecting the workpiece surface. The robust 0.8mm radius makes it the perfect choice for medium machining where both durability and finish are paramount.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection style=\"margin-bottom: 40px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-left: 5px solid #47479F; padding-left: 15px;\"\u003eKey Features\u003c\/h2\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; margin-top: 20px;\"\u003e\n\u003cdiv style=\"padding: 15px; border: 1px solid #eee; border-radius: 8px;\"\u003e\n\u003cstrong style=\"color: #47479f;\"\u003eAdvanced CVD TT8115 Coating\u003c\/strong\u003e\n\u003cp style=\"font-size: 0.95em; margin-top: 5px;\"\u003eThick-layer technology provides exceptional crater wear resistance and thermal stability for high-velocity cutting.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 15px; border: 1px solid #eee; border-radius: 8px;\"\u003e\n\u003cstrong style=\"color: #47479f;\"\u003eMT Chip Control Geometry\u003c\/strong\u003e\n\u003cp style=\"font-size: 0.95em; margin-top: 5px;\"\u003eEngineered for medium applications, delivering stable chip breaking across a wide range of feed rates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 15px; border: 1px solid #eee; border-radius: 8px;\"\u003e\n\u003cstrong style=\"color: #47479f;\"\u003eReinforced 0.8mm Radius\u003c\/strong\u003e\n\u003cp style=\"font-size: 0.95em; margin-top: 5px;\"\u003eOffers enhanced edge strength, allowing for higher feed rates while maintaining an excellent surface Ra value.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection style=\"margin-bottom: 40px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-left: 5px solid #47479F; padding-left: 15px;\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdiv style=\"margin: 20px 0; border: 1px solid #47479F; padding: 20px; border-radius: 8px;\"\u003e\n\u003ch3 style=\"margin-top: 0; font-size: 1.1em; color: #47479f;\"\u003eISO Code Decoding: SCMT120408-MT\u003c\/h3\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 8px; font-family: monospace; font-size: 1.1em; margin-top: 15px;\"\u003e\n\u003cdiv style=\"border: 1px solid #47479F; padding: 10px; flex: 1; min-width: 80px; text-align: center;\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eSquare 90°\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; padding: 10px; flex: 1; min-width: 80px; text-align: center;\"\u003e\n\u003cstrong\u003eC\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003e7° Relief\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; padding: 10px; flex: 1; min-width: 80px; text-align: center;\"\u003e\n\u003cstrong\u003eM\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eTolerance\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; padding: 10px; flex: 1; min-width: 80px; text-align: center;\"\u003e\n\u003cstrong\u003eT\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eHole\/Sint\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; flex: 1; min-width: 80px; text-align: center; background: #f0f4ff;\"\u003e\n\u003cstrong\u003e12\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003e12.7mm IC\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; flex: 1; min-width: 80px; text-align: center; background: #f0f4ff;\"\u003e\n\u003cstrong\u003e04\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003e4.76mm S\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; flex: 1; min-width: 80px; text-align: center; background: #f0f4ff;\"\u003e\n\u003cstrong\u003e08\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003e0.8mm RE\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; padding: 10px; flex: 1; min-width: 80px; text-align: center;\"\u003e\n\u003cstrong\u003eMT\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eMed Chip\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-bottom: 25px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #47479F; color: white;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd;\"\u003eUnit System\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd;\"\u003eDesignation\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd;\"\u003eI.C. (Inscribed Circle)\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd;\"\u003eThickness (S)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMetric (ISO)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eSCMT120408-MT\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e12.7 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e4.76 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eImperial (ANSI)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eSCMT432-MT\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e0.500\"\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e0.187\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eRecommended Cutting Parameters\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; background: #fff;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #f2f2f2;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd;\"\u003eMaterial Group\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd;\"\u003eSpeed (Vc)\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd;\"\u003eFeed Rate (fn)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eCarbon Steel (P)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e280 - 450 m\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e0.12 - 0.45 mm\/rev\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eAlloy Steel (P)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e220 - 400 m\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e0.10 - 0.40 mm\/rev\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection style=\"margin-bottom: 40px; border: 2px dashed #47479F; padding: 25px; text-align: center; border-radius: 8px;\"\u003e\n\u003ch3 style=\"margin-top: 0; color: #47479f;\"\u003eCompatible Toolholders\u003c\/h3\u003e\n\u003cp\u003eThis SCMT 12 series insert is designed for 90° square positive holders. Compatible with: \u003cstrong\u003eSSKCR\/L 12\u003c\/strong\u003e, \u003cstrong\u003eSCKCR\/L 12\u003c\/strong\u003e, or \u003cstrong\u003eS-SCKCR 12\u003c\/strong\u003e series boring bars for internal turning.\u003c\/p\u003e\n\u003cdiv style=\"border: 1px solid #47479F; padding: 10px; display: inline-block; margin-top: 10px; background: #f0f4ff;\"\u003e\u003ca href=\"https:\/\/cnchome-beyond.com\/collections\/sc-insert-internal\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #47479f;\"\u003e\u003cspan style=\"text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cb\u003eView SCMT 1204 Holders →\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection style=\"margin-bottom: 40px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-left: 5px solid #47479F; padding-left: 15px;\"\u003eProduct Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-speed turning and profiling of carbon steel automotive components.\u003c\/li\u003e\n\u003cli\u003ePrecision machining of alloy steel flanges, gear blanks, and shafts.\u003c\/li\u003e\n\u003cli\u003eContinuous CNC turning in stable setups requiring high dimensional accuracy.\u003c\/li\u003e\n\u003cli\u003eInternal boring of steel cylinders where chip evacuation is critical.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection style=\"margin-bottom: 40px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-left: 5px solid #47479F; padding-left: 15px;\"\u003eTaeguTec Grade Benchmarking\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #eee;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eGrade Name\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eCoating\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eBest Use Case\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eTT8115\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eCVD (Thick)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\n\u003cstrong\u003eThe Speed Specialist:\u003c\/strong\u003e High-velocity continuous cutting of steel.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eTT8125\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eCVD\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\n\u003cstrong\u003eThe All-Rounder:\u003c\/strong\u003e Balanced toughness for general steel turning.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection style=\"background: #47479F; color: white; padding: 35px; border-radius: 8px; margin-bottom: 40px;\"\u003e\n\u003ch2 style=\"margin-top: 0; color: white;\"\u003eWhy Choose TaeguTec?\u003c\/h2\u003e\n\u003cp\u003eTaeguTec is a global leader in tungsten carbide technology, and the SCMT 120408-MT TT8115 represents the absolute pinnacle of high-productivity steel machining. We understand that in modern CNC environments, every second counts. By combining an advanced thick-film CVD coating with a high-strength substrate, TaeguTec enables shops to push cutting speeds to the limit without sacrificing tool life or safety. The MT chipbreaker is the result of rigorous engineering, designed to keep your machines running by managing chip flow flawlessly. When precision, speed, and reliability are required, TaeguTec is the industry’s trusted partner.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection style=\"margin-bottom: 40px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-left: 5px solid #47479F; padding-left: 15px;\"\u003eVerified Global Feedback\u003c\/h2\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 15px; margin-top: 20px;\"\u003e\n\u003cdiv style=\"border: 1px solid #ddd; padding: 20px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"color: #ffd700; margin-bottom: 8px;\"\u003e★★★★★\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003e\"Productivity Booster\"\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 0.9em;\"\u003eWe pushed our cutting speed to 400 m\/min on alloy steel. The TT8115 grade handles the heat like a pro. Consistent parts every time.\u003c\/p\u003e\n\u003csmall style=\"color: #777;\"\u003e— Precision Components LLC (USA)\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #ddd; padding: 20px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"color: #ffd700; margin-bottom: 8px;\"\u003e★★★★★\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003e\"Hervorragende Leistung\"\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 0.9em;\"\u003ePerfect chip control with the MT geometry. No more tangled chips on our automated lathes. The 0.8 radius is very robust.\u003c\/p\u003e\n\u003csmall style=\"color: #777;\"\u003e— Weber Fertigungstechnik (Germany)\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #ddd; padding: 20px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"color: #ffd700; margin-bottom: 8px;\"\u003e★★★★★\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003e\"Ottimo Rapporto Qualità\/Prezzo\"\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 0.9em;\"\u003eUsing these for our high-speed steel turning lines. The tool life is significantly better than our previous supplier. Great consistency.\u003c\/p\u003e\n\u003csmall style=\"color: #777;\"\u003e— Meccanica Lombarda (Italy)\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #ddd; padding: 20px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"color: #ffd700; margin-bottom: 8px;\"\u003e★★★★☆\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003e\"Stable and Precise\"\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 0.9em;\"\u003eThe dimensional accuracy is perfect. Even at high velocities, the wear is very predictable. A very professional tool for steel.\u003c\/p\u003e\n\u003csmall style=\"color: #777;\"\u003e— Sato Heavy Industries (Japan)\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection style=\"margin-bottom: 40px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-left: 5px solid #47479F; padding-left: 15px;\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv style=\"margin-top: 20px;\"\u003e\n\u003cdiv style=\"margin-bottom: 15px; padding: 15px; background: #f9f9f9; border-radius: 5px;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0;\"\u003e1. Is TT8115 suitable for interrupted cutting?\u003c\/p\u003e\n\u003cp style=\"margin-top: 5px; font-size: 0.95em;\"\u003eTT8115 is optimized for continuous high-speed cutting. For heavy interruptions, we recommend \u003cstrong\u003eTT8125\u003c\/strong\u003e or \u003cstrong\u003eTT8135\u003c\/strong\u003e for increased edge toughness.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 15px; padding: 15px; background: #f9f9f9; border-radius: 5px;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0;\"\u003e2. Why choose a 0.8mm radius over 0.4mm?\u003c\/p\u003e\n\u003cp style=\"margin-top: 5px; font-size: 0.95em;\"\u003eThe \u003cstrong\u003e0.8mm radius\u003c\/strong\u003e (08) offers greater edge strength and allows for higher feed rates, making it ideal for medium-duty turning on stable workpieces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cfooter style=\"padding: 20px; background: #eee; border-radius: 4px; font-size: 0.9em; text-align: center;\"\u003e\u003cstrong\u003e💡 Material Comparison Tip:\u003c\/strong\u003e Use \u003cstrong\u003eTT8115\u003c\/strong\u003e for maximum productivity in high-speed continuous steel turning. If your application involves vibration or instability, consider switching to \u003cstrong\u003eTT8125\u003c\/strong\u003e.\u003c\/footer\u003e\n\u003c\/div\u003e","brand":"taegutec","offers":[{"title":"Default Title","offer_id":43326722834604,"sku":"SCMT120408MT TT8115","price":149.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/TaeguTec_SCMT120408-MT_TT8115_Square_CVD_Carbide_Insert_for_High-Speed_Steel_Machining..jpg?v=1776394485","url":"https:\/\/cnchome-beyond.com\/products\/taegutec-scmt120408-mt-tt8115-steel-turning-insert","provider":"CNCHome-Beyond","version":"1.0","type":"link"}