{"product_id":"s20r-stlnr16-boring-bar-tool-holder-tnmg-beyond","title":"S20R-STLNR16 Boring Bar Tool Holder for TNMG Inserts – BEYOND","description":"\u003cdiv style=\"font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; color: #333; line-height: 1.6; max-width: 1000px; margin: auto; background-color: #ffffff;\"\u003e\n\u003cdiv style=\"background-color: #47479f; padding: 35px 20px; text-align: center; border-radius: 4px;\"\u003e\n\u003ch1 style=\"color: #ffffff; margin: 0; font-size: 28px; letter-spacing: 1px; text-transform: uppercase;\"\u003eS20Q-STLNR16 Internal Turning Toolholder\u003c\/h1\u003e\n\u003cp style=\"color: #e0e0f5; margin: 10px 0 0 0; font-size: 18px;\"\u003eHigh-Rigidity Boring Bar for TNMG1604 Inserts\u003c\/p\u003e\n\u003c\/div\u003e\n\u003csection style=\"padding: 30px 15px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-left: 6px solid #47479F; padding-left: 15px; font-size: 24px;\"\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003e\"What is the best boring bar for stable internal turning with triangular TNMG inserts?\"\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eBeyond S20Q-STLNR16\u003c\/strong\u003e is a professional-grade internal boring bar specifically designed for \u003cstrong\u003eTNMG1604\u003c\/strong\u003e series inserts. With a 91° approach angle and a high-strength steel shank, this toolholder provides exceptional stability and vibration damping during deep-hole boring operations. It features a top-clamp locking mechanism that ensures the insert remains secure under heavy cutting loads, delivering high-precision surface finishes in steel, stainless steel, and cast iron.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection style=\"padding: 20px 15px; background-color: #f4f4f9; border-radius: 8px; margin: 0 15px;\"\u003e\n\u003ch2 style=\"color: #47479f; font-size: 24px;\"\u003eKey Features\u003c\/h2\u003e\n\u003cul style=\"list-style-type: none; padding: 0;\"\u003e\n\u003cli style=\"margin-bottom: 12px; padding-left: 30px; position: relative;\"\u003e\n\u003cspan style=\"color: #47479f; position: absolute; left: 0; font-weight: bold;\"\u003e✔\u003c\/span\u003e \u003cstrong\u003eEnhanced Rigidity:\u003c\/strong\u003e Heat-treated alloy steel construction minimizes deflection and chatter.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 12px; padding-left: 30px; position: relative;\"\u003e\n\u003cspan style=\"color: #47479f; position: absolute; left: 0; font-weight: bold;\"\u003e✔\u003c\/span\u003e \u003cstrong\u003eDual Locking Precision:\u003c\/strong\u003e Optimized clamping force ensures repeatability and longer insert life.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 12px; padding-left: 30px; position: relative;\"\u003e\n\u003cspan style=\"color: #47479f; position: absolute; left: 0; font-weight: bold;\"\u003e✔\u003c\/span\u003e \u003cstrong\u003eLarge Depth Capacity:\u003c\/strong\u003e The 180mm overall length allows for extended reach in deep internal bores.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection style=\"padding: 30px 15px;\"\u003e\n\u003ch2 style=\"color: #47479f; font-size: 24px;\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 30px; text-align: center;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 12px; flex: 1; min-width: 80px; border-radius: 4px;\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eSteel Shank\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 12px; flex: 1; min-width: 80px; border-radius: 4px;\"\u003e\n\u003cstrong\u003e20\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003e20mm Dia\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 12px; flex: 1; min-width: 80px; border-radius: 4px;\"\u003e\n\u003cstrong\u003eQ\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003e180mm Len\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 12px; flex: 1; min-width: 80px; border-radius: 4px;\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eScrew Lock\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 12px; flex: 1; min-width: 80px; border-radius: 4px;\"\u003e\n\u003cstrong\u003eT\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eT-Shape\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 12px; flex: 1; min-width: 80px; border-radius: 4px;\"\u003e\n\u003cstrong\u003eL\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003e91° Angle\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 12px; flex: 1; min-width: 80px; border-radius: 4px;\"\u003e\n\u003cstrong\u003eN\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003e0° Clearance\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 12px; flex: 1; min-width: 80px; border-radius: 4px;\"\u003e\n\u003cstrong\u003eR\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eRight Hand\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 12px; flex: 1; min-width: 80px; border-radius: 4px;\"\u003e\n\u003cstrong\u003e16\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eInsert Size\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-bottom: 25px; border: 1px solid #ddd;\"\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;\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eMetric Units\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eImperial Units\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eShank Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e20 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e0.787\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOverall Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e180 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e7.087\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMinimum Bore (Dmin)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e25 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e0.984\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"color: #47479f; font-size: 20px;\"\u003eCutting Parameters Recommendations\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #ddd;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd;\"\u003eMaterial Group\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd;\"\u003eCutting Speed (Vc)\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd;\"\u003eFeed Rate (f)\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;\"\u003e150 - 250 m\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e0.15 - 0.35 mm\/rev\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eStainless Steel (M)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e120 - 180 m\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e0.10 - 0.25 mm\/rev\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"margin-top: 25px; border: 2px dashed #47479F; padding: 20px; text-align: center; border-radius: 8px;\"\u003e\n\u003cp style=\"margin: 0 0 10px 0; font-weight: bold; color: #47479f;\"\u003eMatching Insert Required: TNMG 1604**\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; color: #666;\"\u003eChoose a negative triangular insert for 6 usable cutting edges.\u003c\/p\u003e\n\u003ca style=\"display: inline-block; padding: 10px 25px; background-color: #47479f; color: white; text-decoration: none; border-radius: 4px; font-weight: bold;\" href=\"\/search?q=TNMG1604\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=TNMG1604\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #ffffff;\"\u003e\u003cspan style=\"display: inline-block; padding: 10px 25px; background-color: rgb(71, 71, 159); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; border-radius: 4px;\"\u003e\u003cb\u003eShop TNMG1604 Inserts →\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 20px; padding: 0 15px; margin-bottom: 30px;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px; padding: 20px; border: 1px solid #eee; border-radius: 8px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eTypical Applications\u003c\/h3\u003e\n\u003cul style=\"padding-left: 20px; font-size: 14px;\"\u003e\n\u003cli\u003eInternal Boring of Cylinders\u003c\/li\u003e\n\u003cli\u003eInternal Facing and Profiling\u003c\/li\u003e\n\u003cli\u003eMedium-duty Roughing to Semi-finishing\u003c\/li\u003e\n\u003cli\u003eHigh-efficiency Production on CNC Lathes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px; padding: 20px; border: 1px solid #eee; border-radius: 8px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eEquipment Compatibility\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px;\"\u003eCompatible with any standard CNC lathe tool block or turret with a 20mm (0.787\") circular capacity. Standard ISO geometry allows for seamless replacement of premium brand toolholders.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003csection style=\"padding: 25px 15px; border-top: 1px solid #eee;\"\u003e\n\u003ch2 style=\"color: #47479f; font-size: 24px;\"\u003eBeyond Brand Material Grade Comparison\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px;\"\u003e\u003cstrong\u003eSteel Shank (S-Series):\u003c\/strong\u003e Best for general purpose boring with overhangs up to 3-4 times diameter.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px;\"\u003e\u003cstrong\u003eCarbide Shank (C-Series):\u003c\/strong\u003e Required for deep-hole boring with overhangs exceeding 5 times diameter to eliminate vibration.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection style=\"padding: 30px 15px; background-color: #f9f9f9;\"\u003e\n\u003ch2 style=\"color: #47479f; text-align: center; font-size: 24px;\"\u003eWhy Choose Beyond Cutting Tools?\u003c\/h2\u003e\n\u003cp style=\"text-align: center; max-width: 700px; margin: auto; margin-bottom: 30px;\"\u003eWe specialize in high-precision CNC tooling that combines industrial durability with cost-effective performance. Our S-series boring bars are the choice of workshops worldwide.\u003c\/p\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 15px; justify-content: center;\"\u003e\n\u003cdiv style=\"border: 1px solid #ddd; padding: 15px; border-radius: 8px; background: white; width: 300px;\"\u003e\n\u003cspan style=\"color: #f1c40f;\"\u003e★★★★★\u003c\/span\u003e\n\u003cp style=\"font-size: 14px; font-style: italic;\"\u003e\"Great stability. Switched from a more expensive brand to Beyond S20Q and haven't noticed any drop in quality.\"\u003c\/p\u003e\n\u003csmall\u003e— Robert K., USA\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #ddd; padding: 15px; border-radius: 8px; background: white; width: 300px;\"\u003e\n\u003cspan style=\"color: #f1c40f;\"\u003e★★★★★\u003c\/span\u003e\n\u003cp style=\"font-size: 14px; font-style: italic;\"\u003e\"Sehr stabil. Perfekt für unsere CNC-Maschinen. Schnelle Lieferung nach Deutschland.\"\u003c\/p\u003e\n\u003csmall\u003e— Lukas M., Germany\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #ddd; padding: 15px; border-radius: 8px; background: white; width: 300px;\"\u003e\n\u003cspan style=\"color: #f1c40f;\"\u003e★★★★★\u003c\/span\u003e\n\u003cp style=\"font-size: 14px; font-style: italic;\"\u003e\"Excellent price for a boring bar this rigid. TNMG16 inserts fit perfectly.\"\u003c\/p\u003e\n\u003csmall\u003e— James T., UK\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #ddd; padding: 15px; border-radius: 8px; background: white; width: 300px;\"\u003e\n\u003cspan style=\"color: #f1c40f;\"\u003e★★★★☆\u003c\/span\u003e\n\u003cp style=\"font-size: 14px; font-style: italic;\"\u003e\"Qualità affidabile. Utilizzato per la lavorazione dell'acciaio inox con ottimi risultati.\"\u003c\/p\u003e\n\u003csmall\u003e— Alessandro B., Italy\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #ddd; padding: 15px; border-radius: 8px; background: white; width: 300px;\"\u003e\n\u003cspan style=\"color: #f1c40f;\"\u003e★★★★★\u003c\/span\u003e\n\u003cp style=\"font-size: 14px; font-style: italic;\"\u003e\"Precision manufacturing. Fits our Japanese lathe turrets perfectly.\"\u003c\/p\u003e\n\u003csmall\u003e— Akira S., Japan\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection style=\"padding: 30px 15px;\"\u003e\n\u003ch2 style=\"color: #47479f; font-size: 24px; text-align: center;\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv style=\"max-width: 800px; margin: auto;\"\u003e\n\u003cdetails style=\"border-bottom: 1px solid #ddd; padding: 15px; cursor: pointer;\"\u003e\n\u003csummary style=\"font-weight: bold;\"\u003eWhat inserts are compatible with S20Q-STLNR16?\u003c\/summary\u003e\n\u003cp style=\"padding-top: 10px;\"\u003eThis toolholder is specifically designed for TNMG 1604** series inserts. It is compatible with all major brands' ISO-standard TNMG16 inserts.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"border-bottom: 1px solid #ddd; padding: 15px; cursor: pointer;\"\u003e\n\u003csummary style=\"font-weight: bold;\"\u003eIs this toolholder for right-hand or left-hand turning?\u003c\/summary\u003e\n\u003cp style=\"padding-top: 10px;\"\u003eThe \"R\" in the model name (S20Q-STLN\u003cstrong\u003eR\u003c\/strong\u003e16) indicates a Right-Hand toolholder.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"border-bottom: 1px solid #ddd; padding: 15px; cursor: pointer;\"\u003e\n\u003csummary style=\"font-weight: bold;\"\u003eWhat is the maximum boring depth for this 20mm bar?\u003c\/summary\u003e\n\u003cp style=\"padding-top: 10px;\"\u003eFor a steel shank, the recommended maximum overhang is 3 to 4 times the diameter (60mm - 80mm) to maintain stability and surface finish.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 25px; border-radius: 4px; margin-top: 20px;\"\u003e\n\u003ch4 style=\"margin-top: 0; color: #ffffff; border-bottom: 1px solid #6c6cc4; padding-bottom: 5px;\"\u003ePro Machining Tip: Material Setup\u003c\/h4\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003eWhen using the S20Q-STLNR16 for internal boring, ensure the center height of the tool is aligned perfectly with the workpiece axis. A tool set even 0.1mm too high or low can cause significant vibration and premature chipping of the TNMG16 insert edges.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":43607420469420,"sku":"S20R-STLNR16","price":22.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/Beyond_S20Q-STLNR16_CNC_lathe_internal_boring_bar_toolholder_for_TNMG1604_inserts..jpg?v=1776913253","url":"https:\/\/cnchome-beyond.com\/products\/s20r-stlnr16-boring-bar-tool-holder-tnmg-beyond","provider":"CNCHome-Beyond","version":"1.0","type":"link"}