{"product_id":"zcc-ct-knux160405l11-ybm251-left-hand-insert","title":"ZCC.CT KNUX160405L11 YBM251 Left-Hand Turning Inserts for Stainless Steel","description":"\u003cdiv style=\"font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; color: #333; max-width: 100%; margin: 0 auto; background: #ffffff; overflow: hidden;\"\u003e\n\u003c!-- Section: H1 Header --\u003e\u003cheader style=\"background-color: #47479f; padding: 40px 20px; text-align: center;\"\u003e\n\u003ch1 style=\"color: #ffffff; margin: 0; font-size: 24px; font-weight: bold; text-transform: uppercase; letter-spacing: 1px;\"\u003eZCC.CT KNUX160405L11 YBM251 Turning Insert\u003c\/h1\u003e\n\u003cp style=\"color: #e0e0ff; margin-top: 10px; font-size: 16px;\"\u003ePremium Left-Hand Solution for Stainless Steel Machining\u003c\/p\u003e\n\u003c\/header\u003e\u003c!-- Section 1: Product Overview (Natural Context) --\u003e\n\u003csection style=\"padding: 30px 20px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-left: 5px solid #47479F; padding-left: 15px; font-size: 20px;\"\u003eProduct Overview\u003c\/h2\u003e\n\u003cdiv style=\"background: #f4f4fb; padding: 25px; border-radius: 8px; border-left: 5px solid #47479F; margin-bottom: 20px;\"\u003e\n\u003cp style=\"font-style: italic; color: #47479f; margin: 0;\"\u003e\"Which insert provides the highest stability and chip-breaking efficiency for left-hand profiling of 304 or 316 stainless steel in medium cutting conditions?\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003eThe \u003cstrong\u003eZCC.CT KNUX160405L11\u003c\/strong\u003e in \u003cstrong\u003eYBM251\u003c\/strong\u003e grade is a specialized 55° parallelogram turning insert designed for the \u003cstrong\u003eISO M20-M30\u003c\/strong\u003e range. This \u003cstrong\u003eLeft-Hand (L)\u003c\/strong\u003e geometry is critical for specific tool holder orientations and profiling paths. Featuring a refined CVD coating, it combines a high-toughness substrate with superior wear resistance, specifically tackling the work-hardening and thermal challenges inherent in stainless steel machining. The \u003cstrong\u003eL11 chipbreaker\u003c\/strong\u003e ensures smooth chip evacuation even at varying depths of cut.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- Section 2: Key Features --\u003e\n\u003csection style=\"background-color: #47479f; color: #ffffff; padding: 30px 20px; border-radius: 0; margin-bottom: 30px;\"\u003e\n\u003ch2 style=\"color: #ffffff; font-size: 20px; margin-top: 0;\"\u003eKey Core Advantages\u003c\/h2\u003e\n\u003cul style=\"list-style-type: none; padding: 0;\"\u003e\n\u003cli style=\"margin-bottom: 12px; display: flex; align-items: flex-start;\"\u003e\n\u003cspan style=\"margin-right: 12px; color: #a2a2ff;\"\u003e✔\u003c\/span\u003e \u003cspan\u003e\u003cstrong\u003eAdvanced YBM251 Grade:\u003c\/strong\u003e A second-generation CVD coated carbide optimized for thermal stability in austenitic stainless steel.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 12px; display: flex; align-items: flex-start;\"\u003e\n\u003cspan style=\"margin-right: 12px; color: #a2a2ff;\"\u003e✔\u003c\/span\u003e \u003cspan\u003e\u003cstrong\u003eLeft-Hand (L) Geometry:\u003c\/strong\u003e Dedicated left-hand orientation for specialized profiling and sub-spindle operations.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 12px; display: flex; align-items: flex-start;\"\u003e\n\u003cspan style=\"margin-right: 12px; color: #a2a2ff;\"\u003e✔\u003c\/span\u003e \u003cspan\u003e\u003cstrong\u003eSuperior Chip Evacuation:\u003c\/strong\u003e The L11 groove prevents \"bird-nesting,\" significantly reducing downtime on automated CNC lines.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003c!-- Section 3: Technical Specifications \u0026 Nomenclature --\u003e\n\u003csection style=\"padding: 0 20px 30px;\"\u003e\n\u003ch2 style=\"color: #47479f;\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003c!-- Model Decoding Box --\u003e\n\u003ch3 style=\"font-size: 18px; margin-bottom: 15px;\"\u003eISO Nomenclature Breakdown\u003c\/h3\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 5px; justify-content: center; margin-bottom: 30px;\"\u003e\n\u003cdiv style=\"border: 1px solid #47479F; padding: 10px; flex: 1; min-width: 60px; text-align: center; font-weight: bold;\"\u003eK\u003cbr\u003e\u003cspan style=\"font-size: 10px; font-weight: normal;\"\u003e55° Shape\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; padding: 10px; flex: 1; min-width: 60px; text-align: center; font-weight: bold;\"\u003eN\u003cbr\u003e\u003cspan style=\"font-size: 10px; font-weight: normal;\"\u003e0° Relief\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; padding: 10px; flex: 1; min-width: 60px; text-align: center; font-weight: bold;\"\u003eU\u003cbr\u003e\u003cspan style=\"font-size: 10px; font-weight: normal;\"\u003eTolerance\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; padding: 10px; flex: 1; min-width: 60px; text-align: center; font-weight: bold;\"\u003eX\u003cbr\u003e\u003cspan style=\"font-size: 10px; font-weight: normal;\"\u003eSpecial\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; padding: 10px; flex: 1; min-width: 60px; text-align: center; font-weight: bold;\"\u003e16\u003cbr\u003e\u003cspan style=\"font-size: 10px; font-weight: normal;\"\u003e16mm Edge\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; padding: 10px; flex: 1; min-width: 60px; text-align: center; font-weight: bold;\"\u003e04\u003cbr\u003e\u003cspan style=\"font-size: 10px; font-weight: normal;\"\u003e4.76mm T\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; flex: 1; min-width: 60px; text-align: center; font-weight: bold; background: #f4f4fb;\"\u003eL11\u003cbr\u003e\u003cspan style=\"font-size: 10px; font-weight: normal;\"\u003eLH Chip\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Comparison Metric\/Imperial --\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-bottom: 25px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #47479f; color: white; text-align: left;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd;\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd;\"\u003eMetric (ISO)\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd;\"\u003eImperial (ANSI)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eISO Model\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eKNUX160405L11\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eKNUX 431-L11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eInscribed Circle\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e9.525 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e3\/8 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eNose Radius\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e0.5 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e0.020 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- Cutting Data --\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eRecommended Cutting Data (M Group)\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; text-align: center; border: 1px solid #ddd;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #f9f9f9;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd;\"\u003eApplication\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 (fn)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eStainless (Continuous)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e150 - 260 m\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.12 - 0.35 mm\/r\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eStainless (Light Interruption)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e120 - 200 m\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.15 - 0.30 mm\/r\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003c!-- Holder Box --\u003e\n\u003csection style=\"padding: 0 20px 30px;\"\u003e\n\u003cdiv style=\"border: 2px dashed #47479F; padding: 20px; text-align: center; border-radius: 10px; background: #f8f8ff;\"\u003e\n\u003cp style=\"margin-bottom: 10px; font-weight: bold; color: #47479f;\"\u003eCompatible Left-Hand Holders:\u003c\/p\u003e\n\u003cp style=\"font-size: 16px; margin-bottom: 15px;\"\u003eCKJNL \/ CKUNL \/ CKDNL (ISO Standard)\u003c\/p\u003e\n\u003ca style=\"display: inline-block; padding: 12px 25px; background: #47479F; color: white; text-decoration: none; border-radius: 5px; font-weight: bold;\" href=\"#\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=CKJNR\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #ffffff;\"\u003e\u003cspan style=\"display: inline-block; padding: 12px 25px; background: rgb(71, 71, 159); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; border-radius: 5px;\"\u003e\u003cb\u003eView Matching Tool Holders →\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- Section 4 \u0026 5: Applications \u0026 Compatibility --\u003e\n\u003csection style=\"padding: 0 20px 30px;\"\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px;\"\u003e\n\u003cdiv style=\"background: #f9f9f9; padding: 20px; border-radius: 8px;\"\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 0;\"\u003ePrimary Applications\u003c\/h3\u003e\n\u003cul style=\"padding-left: 20px; font-size: 14px;\"\u003e\n\u003cli\u003eMedium profiling of Austenitic Stainless Steel (304, 316).\u003c\/li\u003e\n\u003cli\u003eDuplex Stainless Steel machining (Light semi-finishing).\u003c\/li\u003e\n\u003cli\u003eChemical industry flanges and pump shafts.\u003c\/li\u003e\n\u003cli\u003eAutomotive valve production.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f9f9f9; padding: 20px; border-radius: 8px;\"\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 0;\"\u003eMachine Compatibility\u003c\/h3\u003e\n\u003cul style=\"padding-left: 20px; font-size: 14px;\"\u003e\n\u003cli\u003eAll CNC Turning Centers with ISO-compliant turrets.\u003c\/li\u003e\n\u003cli\u003eBest utilized with high-pressure coolant systems.\u003c\/li\u003e\n\u003cli\u003eOptimized for Left-Hand tool post setups.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- Section 6: Grade Matrix --\u003e\n\u003csection style=\"padding: 0 20px 30px;\"\u003e\n\u003ch2 style=\"color: #47479f;\"\u003eZCC.CT Grade Choice (Stainless Steel)\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x: auto;\"\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\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eRange\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eCharacteristics\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f4f4fb; font-weight: bold;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eYBM251\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eM20-M30\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eUniversal Grade \/ Versatile\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eYBM151\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eM10-M20\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eFinishing \/ High Speed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- Section 7: Reviews --\u003e\n\u003csection style=\"padding: 0 20px 40px;\"\u003e\n\u003ch2 style=\"color: #47479f; text-align: center;\"\u003eMachinist Reviews\u003c\/h2\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 15px;\"\u003e\n\u003cdiv style=\"border: 1px solid #ddd; padding: 15px; border-radius: 8px;\"\u003e\n\u003cspan style=\"color: #f1c40f;\"\u003e★★★★★\u003c\/span\u003e\n\u003cp style=\"font-size: 13px; margin: 5px 0;\"\u003e\"Hard to find quality left-hand inserts. These ZCC units are robust for 316L. No vibration.\"\u003c\/p\u003e\n\u003csmall\u003e— Mike T., USA 🇺🇸\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #ddd; padding: 15px; border-radius: 8px;\"\u003e\n\u003cspan style=\"color: #f1c40f;\"\u003e★★★★★\u003c\/span\u003e\n\u003cp style=\"font-size: 13px; margin: 5px 0;\"\u003e\"Sehr gute Standzeit bei Edelstahl. YBM251 ist mein Favorit für den Allround-Einsatz.\"\u003c\/p\u003e\n\u003csmall\u003e— Jürgen K., Germany 🇩🇪\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #ddd; padding: 15px; border-radius: 8px;\"\u003e\n\u003cspan style=\"color: #f1c40f;\"\u003e★★★★★\u003c\/span\u003e\n\u003cp style=\"font-size: 13px; margin: 5px 0;\"\u003e\"Perfetto per lavorazione acciai inossidabili. Truciolo sempre sotto controllo.\"\u003c\/p\u003e\n\u003csmall\u003e— Alessandro V., Italy 🇮🇹\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #ddd; padding: 15px; border-radius: 8px;\"\u003e\n\u003cspan style=\"color: #f1c40f;\"\u003e★★★★☆\u003c\/span\u003e\n\u003cp style=\"font-size: 13px; margin: 5px 0;\"\u003e\"Excellent finish on SS304. Delivered quickly to Tokyo.\"\u003c\/p\u003e\n\u003csmall\u003e— Tanaka H., Japan 🇯🇵\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- Section 8: FAQ --\u003e\n\u003csection style=\"background: #f9f9f9; padding: 30px 20px;\"\u003e\n\u003ch2 style=\"color: #47479f; text-align: center;\"\u003eFAQ\u003c\/h2\u003e\n\u003cdiv style=\"max-width: 800px; margin: 0 auto;\"\u003e\n\u003cdiv style=\"margin-bottom: 20px;\"\u003e\n\u003cp style=\"font-weight: bold; margin-bottom: 5px;\"\u003eQ: Can I use this Left-Hand insert in a Right-Hand holder?\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin: 0;\"\u003eA: No. Left-Hand (L) inserts must be paired with Left-Hand (L) holders to ensure the proper rake angle and chipbreaker orientation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 20px;\"\u003e\n\u003cp style=\"font-weight: bold; margin-bottom: 5px;\"\u003eQ: What is the best coolant strategy for YBM251?\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin: 0;\"\u003eA: Use high-pressure, flood coolant focused directly on the cutting edge to prevent built-up edge (BUE) common in stainless steels.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 20px;\"\u003e\n\u003cp style=\"font-weight: bold; margin-bottom: 5px;\"\u003eQ: Is this insert suitable for roughing?\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin: 0;\"\u003eA: While it can handle light roughing, it is best suited for semi-finishing and profiling in the M20 range.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- Tip Footer --\u003e\u003cfooter style=\"background-color: #333; color: #ffffff; padding: 20px; text-align: center; font-size: 13px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial Tip:\u003c\/strong\u003e When machining austenitic stainless, maintain a constant feed rate. If the tool dwells, it will work-harden the material, leading to premature failure of the next insert edge.\u003c\/p\u003e\n\u003c\/footer\u003e\n\u003c\/div\u003e","brand":"ZCC.CT","offers":[{"title":"Default Title","offer_id":43488269893804,"sku":"KNUX160405L11 YBM251","price":113.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/ZCC.CT_KNUX160405L11_YBM251_left-hand_carbide_insert_for_stainless_steel_machining.jpg?v=1778400537","url":"https:\/\/cnchome-beyond.com\/products\/zcc-ct-knux160405l11-ybm251-left-hand-insert","provider":"CNCHome-Beyond","version":"1.0","type":"link"}