{"product_id":"tungaloy-tnmg160404l-s-t9125-left-hand-carbide-insert","title":"Tungaloy TNMG160404L-S T9125 Left-Hand CVD Coated 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 TNMG160404L-S T9125 Turning Insert\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0; font-size: 18px; opacity: 0.9;\"\u003eLeft-Hand Precision Steel Machining | T9125 CVD Technology | -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 left-hand carbide insert for stable steel finishing?\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTungaloy TNMG160404L-S T9125\u003c\/strong\u003e is an industrial-grade, left-hand (L) oriented turning insert engineered for high-performance machining of carbon and alloy steels. Featuring the \u003cstrong\u003eT9125 CVD coated carbide grade\u003c\/strong\u003e, it offers an exceptional balance of wear resistance and fracture toughness, even under fluctuating cutting temperatures. The \u003cstrong\u003e-S (RS) chipbreaker\u003c\/strong\u003e is specialized for finishing to light-duty cutting, ensuring excellent chip evacuation and preventing workpiece marring. 100% \u003cstrong\u003eMade in Japan\u003c\/strong\u003e, it is the ideal choice for CNC shops requiring precision left-hand tools for complex profiles and finishing passes.\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 CVD Grade\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003eA premium CVD coated grade optimized for steel. The thick coating layer provides high heat resistance, significantly extending tool life during high-speed continuous cutting.\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) Finishing Chipbreaker\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003eSpecifically designed for finishing. Its sharp geometry reduces cutting forces and manages chips effectively at low feed rates, delivering a high-quality surface finish.\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;\"\u003eLeft-Hand (L) Orientation\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003eThe \"L\" designation indicates a left-hand cutting direction, essential for specific tool holder setups (e.g., MTJNL) and back-turning 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 160404L-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;\"\u003e16\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 Specifications: 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;\"\u003eTNMG160404L-S\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eTNMG 331L-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;\"\u003e9.525 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e3\/8\"\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 Cutting 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: Ensure the tool holder is securely clamped. Left-hand finishing at high speeds with T9125 provides a superior surface luster when the setup is rigid.*\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 (P-group).\u003c\/li\u003e\n\u003cli\u003eAutomotive components requiring specific left-hand tool paths.\u003c\/li\u003e\n\u003cli\u003eBoring and finishing operations in specialized CNC lathe cycles.\u003c\/li\u003e\n\u003cli\u003eFinal passes on heat-treated steel parts.\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\u003eDesigned for all standard ISO\/ANSI triangular tool pockets. Pair with \u003cstrong\u003eMTJNL\u003c\/strong\u003e, \u003cstrong\u003eWTJNL\u003c\/strong\u003e, or \u003cstrong\u003eDTLNR\u003c\/strong\u003e holders. Fits seamlessly with major CNC brands including Mazak, Okuma, and Haas.\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\u003eCNC Solutions Support\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\u003eB2B Logistics\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eGlobal Express Shipping\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\u003eVerified Original Box\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;\"\u003eVerified Machinist Reviews\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\"Perfect for LH Finishing\"\u003c\/strong\u003e - \u003cem\u003eMarkus D., Germany\u003c\/em\u003e\u003cbr\u003e\"Used this for a batch of steel pins. The left-hand setup worked perfectly and the surface Ra was spot on. T9125 lasts much longer than our previous inserts.\"\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 Quality\"\u003c\/strong\u003e - \u003cem\u003eJames K., USA\u003c\/em\u003e\u003cbr\u003e\"Fast shipping from Beyond. These are original Tungaloy boxes. The -S chipbreaker handles the chips nicely without marring the finish.\"\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\"Great for Steel\"\u003c\/strong\u003e - \u003cem\u003eLuca B., Italy\u003c\/em\u003e\u003cbr\u003e\"Consistent performance in 4140 steel. Left-hand inserts are sometimes hard to find in stock, but Beyond had them. Authentic Japan quality.\"\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\"Reliable B2B Partner\"\u003c\/strong\u003e - \u003cem\u003eH. Sato, Japan\u003c\/em\u003e\u003cbr\u003e\"Original stock confirmed. Very stable edge life even in high-speed finishing passes. Highly recommended for CNC shops.\"\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\"Best Value for Original Tungaloy\"\u003c\/strong\u003e - \u003cem\u003eRajesh V., India\u003c\/em\u003e\u003cbr\u003e\"Precise radius and very sharp cutting edge. Excellent value for money. The technical data provided was very helpful.\"\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 Machining 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: What is the benefit of the 'L' (Left-Hand) designation?\u003c\/p\u003e\n\u003cp style=\"margin: 5px 0 0;\"\u003eA: Left-hand inserts are designed to cut in the opposite direction of standard tools. This is required for specific spindle rotations or tool holder orientations (like back-turning) where a right-hand tool would not clear the workpiece.\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: How does T9125 compare to T9215?\u003c\/p\u003e\n\u003cp style=\"margin: 5px 0 0;\"\u003eA: T9125 is a versatile CVD grade that handles a wide range of steel types and cutting conditions. T9215 is optimized for even higher-speed continuous cutting. T9125 offers better toughness for general-purpose finishing.\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: Can I use this for stainless steel?\u003c\/p\u003e\n\u003cp style=\"margin: 5px 0 0;\"\u003eA: While T9125 can handle some stainless steels, it is primarily optimized for carbon and alloy steels (ISO P). For stainless steel finishing, we recommend Tungaloy's T6100 or AH series grades.\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: Optimizing Tool Life\u003c\/h4\u003e\n\u003cp style=\"font-size: 14px; margin-top: 10px;\"\u003eTo maximize the performance of the **T9125 grade**, maintain a constant cutting speed and avoid low speeds that can cause built-up edge (BUE). High speed prevents the material from sticking to the CVD coating. **Tungaloy Japan** - Excellence in precision cutting technology.\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":43166192468140,"sku":"TNMG160404L-S T9125","price":69.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/Tungaloy_TNMG160404L-S_T9125_Left-Hand_Carbide_Turning_Insert_for_Steel_Finishing.jpg?v=1774250911","url":"https:\/\/cnchome-beyond.com\/products\/tungaloy-tnmg160404l-s-t9125-left-hand-carbide-insert","provider":"CNCHome-Beyond","version":"1.0","type":"link"}