{"product_id":"tungaloy-tnmg220404l-s-t9125-left-hand-turning-insert","title":"Tungaloy TNMG220404L-S T9125 Left-Hand CVD Carbide Turning Insert for Steel","description":"\u003cdiv style=\"font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; color: #333; line-height: 1.6; max-width: 950px; margin: auto; border: 1px solid #e0e0e0; background-color: #fff; border-radius: 8px; overflow: hidden; user-select: text;\"\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 45px 20px; text-align: center;\"\u003e\n\u003ch1 style=\"margin: 0; font-size: 28px; font-weight: bold; letter-spacing: 1px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003eTungaloy TNMG220404L-S T9125 Turning Insert\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0; font-size: 18px; opacity: 0.9;\"\u003ePrecision Left-Hand Machining | T9125 Premium Steel Grade | -S Finishing Geometry\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 3px solid #47479F; display: inline-block; padding-bottom: 5px;\"\u003eWhat is the best 22mm left-hand insert for stable steel finishing?\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTungaloy TNMG220404L-S T9125\u003c\/strong\u003e is a high-performance, industrial-grade turning insert designed for the specialized needs of left-hand (L) machining operations. Engineered for finishing to light-duty cutting of carbon and alloy steels, this 22mm size insert provides superior reach and stability. Featuring the \u003cstrong\u003eT9125 CVD coated carbide grade\u003c\/strong\u003e, it excels in heat resistance and edge retention. The \u003cstrong\u003e-S (RS) chipbreaker\u003c\/strong\u003e ensures smooth chip evacuation at low feed rates, delivering a superior surface luster. 100% \u003cstrong\u003eMade in Japan\u003c\/strong\u003e, it is the professional choice for high-precision B2B manufacturing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 0 30px 30px; display: flex; flex-wrap: wrap; gap: 20px;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 250px; border: 1px solid #47479F; padding: 15px; border-radius: 8px;\"\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 0;\"\u003eT9125 Grade Technology\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003eA specialized CVD grade with a thick Al2O3 layer. It offers extreme resistance to crater wear and plastic deformation during high-speed finishing cycles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 250px; border: 1px solid #47479F; padding: 15px; border-radius: 8px;\"\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 0;\"\u003e-S (RS) Chipbreaker\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003eSpecifically optimized for finishing applications. Its sharp edge geometry reduces cutting forces and eliminates vibration for tight-tolerance parts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 250px; border: 1px solid #47479F; padding: 15px; border-radius: 8px;\"\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 0;\"\u003eLarge 22mm ISO Size\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003eThe larger TNMG 22 size offers increased rigidity and heat dissipation compared to smaller variants, ideal for heavier finishing operations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 25px;\"\u003eDecoding TNMG 220404L-S Nomenclature\u003c\/h3\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; justify-content: center; gap: 8px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 14px;\"\u003eT\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eTri\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 14px;\"\u003eN\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e0°\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 14px;\"\u003eM\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eTol.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 14px;\"\u003eG\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eD-Side\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 14px;\"\u003e22\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eSize\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 14px;\"\u003e04\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eThk\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 14px;\"\u003e04\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e0.4 Rad\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 14px;\"\u003eL\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eLH\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 14px;\"\u003e-S\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eChip\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003e3. Technical Data: Metric (ISO) vs. Imperial (ANSI)\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: white;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eTechnical Feature\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eMetric (ISO)\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eImperial (ANSI)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eStandard Model\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eTNMG220404L-S\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eTNMG 431L-S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eInscribed Circle (IC)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e12.7 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e1\/2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eThickness (S)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e4.76 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e3\/16\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eCorner Radius (RE)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.4 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e1\/64\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin: 0 30px; padding: 25px; background-color: #47479f; color: white; border-radius: 12px;\"\u003e\n\u003ch3 style=\"margin-top: 0; border-bottom: 1px solid rgba(255,255,255,0.4); padding-bottom: 10px;\"\u003eRecommended Finishing Parameters\u003c\/h3\u003e\n\u003cul style=\"list-style-type: disc; padding-left: 20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Speed (Vc):\u003c\/strong\u003e 150 - 320 m\/min\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed Rate (f):\u003c\/strong\u003e 0.05 - 0.20 mm\/rev\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of Cut (ap):\u003c\/strong\u003e 0.2 - 1.5 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 13px; font-style: italic;\"\u003e*Pro-Tip: Use high cutting speeds to activate the Al2O3 thermal barrier. Constant coolant flow is recommended for left-hand boring cycles.*\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; display: flex; flex-wrap: wrap; gap: 30px;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003e4. Primary Applications\u003c\/h3\u003e\n\u003cul style=\"padding-left: 20px;\"\u003e\n\u003cli\u003ePrecision finishing of carbon and alloy steels.\u003c\/li\u003e\n\u003cli\u003eBoring operations requiring left-hand tool rotation.\u003c\/li\u003e\n\u003cli\u003eAutomotive components with complex internal profiles.\u003c\/li\u003e\n\u003cli\u003eMass production requiring extremely stable wear life.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003e5. Tool Compatibility\u003c\/h3\u003e\n\u003cp\u003eCompatible with all standard ISO\/ANSI \u003cstrong\u003eTNMG 2204\u003c\/strong\u003e tool holders. Recommended for use with \u003cstrong\u003eMTJNL\u003c\/strong\u003e or \u003cstrong\u003eWTJNL\u003c\/strong\u003e series holders. Fits Haas, DMG Mori, and Mazak CNC centers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f9f9f9;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center;\"\u003e7. Why Source from CNCHome-Beyond?\u003c\/h3\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 15px; margin-top: 15px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 15px; text-align: center; border-radius: 6px; background: white;\"\u003e\n\u003cstrong\u003e100% Genuine\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eTungaloy Japan Stock\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 15px; text-align: center; border-radius: 6px; background: white;\"\u003e\n\u003cstrong\u003eTechnical Experts\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eSupport for Tool Cycles\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 15px; text-align: center; border-radius: 6px; background: white;\"\u003e\n\u003cstrong\u003eFast Shipping\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eGlobal B2B Delivery\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 15px; text-align: center; border-radius: 6px; background: white;\"\u003e\n\u003cstrong\u003eFactory Sealed\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eOriginal Japan Packaging\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #fff;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 30px;\"\u003eFeedback from Real Machine Shops\u003c\/h3\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Incredible Stability\"\u003c\/strong\u003e - \u003cem\u003eJames K., USA\u003c\/em\u003e\u003cbr\u003e\"The larger TNMG 22 size is perfect for our heavy finishing passes. Left-hand orientation is exactly what we needed for our specific CNC setup. T9125 lasts through the whole shift.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Original Japan Quality\"\u003c\/strong\u003e - \u003cem\u003eMarkus D., Germany\u003c\/em\u003e\u003cbr\u003e\"Received original Tungaloy boxes. The surface finish on alloy steel is mirror-like with the -S chipbreaker.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐ \u003cstrong\u003e\"Consistent Performance\"\u003c\/strong\u003e - \u003cem\u003eLuca B., Italy\u003c\/em\u003e\u003cbr\u003e\"We use these for precision boring. The wear pattern is very predictable, which helps us maintain tolerances over long runs.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Fast Shipping, Genuine Product\"\u003c\/strong\u003e - \u003cem\u003eH. Sato, Japan\u003c\/em\u003e\u003cbr\u003e\"Confirmed original stock. T9125 is my top choice for steel machining. The technical data provided was very accurate.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Excellent Surface Finish\"\u003c\/strong\u003e - \u003cem\u003eRajesh V., India\u003c\/em\u003e\u003cbr\u003e\"The -S geometry handles the chips perfectly even at low feed rates. No vibration issues at all.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center;\"\u003e8. FAQ - Professional Support\u003c\/h3\u003e\n\u003cdiv style=\"margin-top: 25px;\"\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: white; padding: 15px; margin-bottom: 10px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Why use a larger TNMG 22 size instead of 16?\u003c\/p\u003e\n\u003cp style=\"margin: 5px 0 0;\"\u003eA: The TNMG 22 size provides a larger contact surface and more carbide volume, which leads to better heat dissipation and increased rigidity during precision finishing operations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: white; padding: 15px; margin-bottom: 10px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Is T9125 suitable for heavy roughing?\u003c\/p\u003e\n\u003cp style=\"margin: 5px 0 0;\"\u003eA: T9125 is highly versatile, but with the -S chipbreaker, it is optimized for finishing to light-duty cutting. For heavy roughing, we recommend the -TM or -TH chipbreakers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: white; padding: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: What tool holder is required for the 'L' orientation?\u003c\/p\u003e\n\u003cp style=\"margin: 5px 0 0;\"\u003eA: You must use a left-hand tool holder (e.g., MTJNL 2525 M22) to ensure the cutting edge is positioned correctly for the spindle rotation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #47479f; color: white; padding: 25px; text-align: center; border-radius: 0 0 8px 8px;\"\u003e\n\u003ch4 style=\"margin: 0; font-size: 18px;\"\u003eTech Tip: T9125 Grade vs. Cermet\u003c\/h4\u003e\n\u003cp style=\"font-size: 14px; margin-top: 10px;\"\u003eWhile cermet offers high gloss, **T9125 CVD coated carbide** provides superior toughness. It is much more resistant to chipping during interrupted finishing cuts on steel. **Tungaloy Japan** - Excellence in precision engineering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 10px; color: #eee; text-align: center; margin-top: 5px;\"\u003e© Technical Data by cnchome-beyond.com - Global CNC Tool Authority\u003c\/p\u003e","brand":"Tungaloy","offers":[{"title":"Default Title","offer_id":43166229037228,"sku":"TNMG220404L-S T9125","price":99.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/Tungaloy_TNMG220404L-S_T9125_Left-Hand_Carbide_Insert_for_Precision_Steel_Finishing.jpg?v=1774251614","url":"https:\/\/cnchome-beyond.com\/products\/tungaloy-tnmg220404l-s-t9125-left-hand-turning-insert","provider":"CNCHome-Beyond","version":"1.0","type":"link"}