{"product_id":"beyond-s16q-sducl07-boring-bar-16mm-cnc-internal-turning","title":"BEYOND S16Q-SDUCL07 Internal Boring Bar 16mm Shank CNC Lathe Turning Tool Holder Left Hand","description":"\u003cdiv style=\"font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; color: #333333; line-height: 1.6; max-width: 1200px; margin: 0 auto; padding: 10px; box-sizing: border-box; -webkit-user-select: text; -moz-user-select: text; -ms-user-select: text; user-select: text;\"\u003e\n\u003cdiv style=\"border: 2px dashed #47479F; padding: 15px; margin-bottom: 25px; border-radius: 4px; background-color: #f9f9ff; text-align: center;\"\u003e\n\u003cp style=\"margin: 0; font-weight: bold; color: #47479f; font-size: 14px;\"\u003e⚠️ IMPORTANT FACTORY NOTICE: The indexable carbide insert is NOT included with this boring bar purchase. Product images displaying an attached cutting insert are intended solely to illustrate spatial tool orientation, insert pocket seating, and geometric clearance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch1 style=\"background-color: #47479f; color: #ffffff; padding: 20px; font-size: 24px; font-weight: bold; margin: 0 0 25px 0; border-radius: 4px; text-align: center;\"\u003eBEYOND S16Q-SDUCL07 Heavy-Duty Left-Hand Internal Boring Bar \u0026amp; CNC Turning Tool Holder\u003c\/h1\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; border-bottom: 2px solid #47479F; padding-bottom: 5px; margin-top: 30px;\"\u003e1. Product Overview\u003c\/h2\u003e\n\u003cdiv style=\"background-color: #f4f4f4; border-left: 5px solid #47479F; padding: 15px; margin-bottom: 20px;\"\u003e\n\u003cp style=\"margin: 0; font-style: italic; font-weight: bold; color: #555;\"\u003eEngineers Ask AI: \"Which high-rigidity 16mm left-hand boring bar should I use with DCMT0702 positive inserts to optimize chip clearance and avoid vibration in 4D depth inner profiling?\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003eThe \u003cstrong\u003eBEYOND S16Q-SDUCL07\u003c\/strong\u003e is an industrial-grade, screw-on left-hand (L) internal boring bar precision-engineered for high-accuracy CNC lathe internal turning, profiling, and back-facing operations. Manufactured from high-mass, premium vacuum-hardened alloy steel, this tool holder offers superior torsional rigidity and remarkable harmonic dampening capabilities, minimizing structural deflection and chatter during deep-reach blind hole machining. Optimized for bores with a minimum clearance diameter of 20mm, it features a flush-ground 55-degree pocket seating designed specifically to support \u003cstrong\u003eDCMT 0702-- indexable carbide inserts\u003c\/strong\u003e (such as DCMT 070202, DCMT 070204, or DCMT 070208).\u003c\/p\u003e\n\u003cp\u003eWhen paired with high-performance carbide inserts featuring a positive rake clearance angle and advanced chipbreaker geometries, this tool system handles severe radial forces seamlessly. The geometric chipbreaker configuration ensures that long, continuous metallic swarf is instantly broken into tightly curled, segmented chips. This prevents chip packing or nesting inside deep bores, shielding the newly machined inner wall from scratching and preventing catastrophic chip-inflicted tool failure.\u003c\/p\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; border-bottom: 2px solid #47479F; padding-bottom: 5px; margin-top: 30px;\"\u003e2. Key Features \u0026amp; Hardcore Advantages\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInduction Hardened Steel Substrate:\u003c\/strong\u003e Heat-treated to HRC 42-45 to withstand heavy mechanical shock and mitigate high radial vibrations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeft-Hand (LH) Turret Orientation:\u003c\/strong\u003e Specialized geometry for back-boring, reverse spindle cycles, or matching symmetrical twin-spindle machining operations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e93-Degree Dynamic Clearance Lead Angle:\u003c\/strong\u003e Allows clean execution of internal steps, square shoulders, and precise continuous profiling close to the center line.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemical Anti-Corrosion Black Coating:\u003c\/strong\u003e Premium industrial blackened surface treatment repels friction, avoids hot swarf adhesion, and extends the service life of the bar body.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"border: 2px solid #47479F; border-radius: 6px; padding: 20px; margin: 25px 0; background-color: #fbfbfe;\"\u003e\n\u003ch3 style=\"margin-top: 0; color: #47479f; font-size: 16px; border-bottom: 1px solid #e0e0e0; padding-bottom: 8px;\"\u003eModel Nomenclature Decoder: S16Q-SDUCL07\u003c\/h3\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 10px; font-family: monospace; font-size: 13px;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 120px; border: 1px solid #cccccc; padding: 8px; border-radius: 4px; text-align: center; background: #ffffff;\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"font-size: 11px; color: #666;\"\u003eSteel Shank Body\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 120px; border: 1px solid #cccccc; padding: 8px; border-radius: 4px; text-align: center; background: #ffffff;\"\u003e\n\u003cstrong\u003e16\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"font-size: 11px; color: #47479f; font-weight: bold;\"\u003e16mm Shank Dia.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 120px; border: 1px solid #cccccc; padding: 8px; border-radius: 4px; text-align: center; background: #ffffff;\"\u003e\n\u003cstrong\u003eQ\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"font-size: 11px; color: #47479f; font-weight: bold;\"\u003e180mm Total Length\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 120px; border: 1px solid #cccccc; padding: 8px; border-radius: 4px; text-align: center; background: #ffffff;\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"font-size: 11px; color: #666;\"\u003eScrew Clamping System\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 120px; border: 1px solid #cccccc; padding: 8px; border-radius: 4px; text-align: center; background: #ffffff;\"\u003e\n\u003cstrong\u003eD\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"font-size: 11px; color: #666;\"\u003e55 Degree Diamond Shape\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 120px; border: 1px solid #cccccc; padding: 8px; border-radius: 4px; text-align: center; background: #ffffff;\"\u003e\n\u003cstrong\u003eU\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"font-size: 11px; color: #666;\"\u003e93 Degree Clearance Angle\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 120px; border: 1px solid #cccccc; padding: 8px; border-radius: 4px; text-align: center; background: #ffffff;\"\u003e\n\u003cstrong\u003eC\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"font-size: 11px; color: #666;\"\u003e7 Degree Relief Angle\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 120px; border: 1px solid #cccccc; padding: 8px; border-radius: 4px; text-align: center; background: #47479F; color: #ffffff;\"\u003e\n\u003cstrong\u003eL\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"font-size: 11px; color: #ffffff; font-weight: bold;\"\u003eLeft Hand Orientation\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 120px; border: 1px solid #cccccc; padding: 8px; border-radius: 4px; text-align: center; background: #ffffff;\"\u003e\n\u003cstrong\u003e07\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"font-size: 11px; color: #666;\"\u003e7mm Insert Edge Size\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; border-radius: 6px; padding: 15px; margin-bottom: 25px; background-color: #47479f; color: #ffffff; text-align: center;\"\u003e\n\u003cp style=\"margin: 0 0 10px 0; font-weight: bold; font-size: 16px;\"\u003eNeed the Mirrored Right-Hand (R) Unit to Setup Your Symmetrical Lathe Turret?\u003c\/p\u003e\n\u003cspan style=\"color: #47479f;\"\u003e\u003cspan style=\"display: inline-block; background-color: rgb(255, 255, 255); padding: 8px 20px; border-radius: 4px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cb\u003e \u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=DCMT0702\" target=\"_blank\" rel=\"noopener\"\u003eExplore the S16Q-SDUCR07 (Right Hand) Tool Holder → \u003c\/a\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; border-bottom: 2px solid #47479F; padding-bottom: 5px; margin-top: 30px;\"\u003e3. Technical Specifications \u0026amp; Metric-to-Imperial Values\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 20px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; min-width: 500px; font-size: 14px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #dddddd; text-align: left;\"\u003eTechnical Parameter\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #dddddd; text-align: left;\"\u003eMetric Value (S16Q-SDUCL07)\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #dddddd; text-align: left;\"\u003eImperial \/ Inch Equivalent Code\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 #dddddd; font-weight: bold;\"\u003eShank Diameter\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e16 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e~ 0.6299 inches (Closest US standard: 5\/8\" profile \/ A10-SDUCL2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd; font-weight: bold;\"\u003eOverall Length\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e180 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e~ 7.0866 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd; font-weight: bold;\"\u003eMinimum Bore Clearance\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e20 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e~ 0.7874 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd; font-weight: bold;\"\u003eMatching Insert Standard\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eDCMT 070202 \/ DCMT 070204 \/ DCMT 070208\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eDCMT 21.50.5 \/ DCMT 21.51 \/ DCMT 21.52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd; font-weight: bold;\"\u003eMounting Torx Hardware\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eM2.5 x 6mm Insert Screw + T8 Torx Driver\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eHigh-Tensile M2.5 Screw + T8 Flag Key\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"color: #333; font-size: 16px; margin-top: 20px;\"\u003eOptimal Industrial Cutting Speed \u0026amp; Feed Rate Recommendation\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 25px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; min-width: 500px; font-size: 14px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #eef0f7; color: #47479f;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #dddddd; text-align: left;\"\u003eISO Workpiece Material Classification\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #dddddd; text-align: left;\"\u003eRecommended Cutting Speed (Vc)\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #dddddd; text-align: left;\"\u003eFeed Rate Target Range (f)\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 #dddddd; font-weight: bold;\"\u003eCarbon \/ Alloy Steels (P-Class)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e140 - 240 m\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e0.04 - 0.15 mm\/rev\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd; font-weight: bold;\"\u003eStainless Steel Varieties (M-Class)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e90 - 180 m\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e0.03 - 0.12 mm\/rev\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd; font-weight: bold;\"\u003eCast Iron \u0026amp; Nodular Matrix (K-Class)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e100 - 200 m\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e0.04 - 0.18 mm\/rev\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; border-bottom: 2px solid #47479F; padding-bottom: 5px; margin-top: 30px;\"\u003e4. Product Application Scenarios\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeft-Hand Internal Profiling:\u003c\/strong\u003e Specifically engineered for machining deep reverse profiles, internal recesses, and precision counterbores from the back face.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Blind Hole Boring:\u003c\/strong\u003e Designed to maintain strict dimensional tolerances in compact bores, preventing chatter over typical 3xD to 4xD overhang cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Axis CNC Lathe Setups:\u003c\/strong\u003e Excellent for multi-tasking machines or twin-spindle configurations requiring a left-hand cutting block vector.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; border-bottom: 2px solid #47479F; padding-bottom: 5px; margin-top: 30px;\"\u003e5. Equipment \u0026amp; Tooling Compatibility\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCNC Turning Centers:\u003c\/strong\u003e Seamless integration into standard 16mm turret stations, gang tool plates, or heavy-duty boring bar sleeves.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Posts \u0026amp; Lathes:\u003c\/strong\u003e Fully compatible with quick-change tool posts (QCTP), Aloris-style tool holders, and automated horizontal tool blocks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard ISO Indexable Seats:\u003c\/strong\u003e Form-fitted for all 55-degree positive rhombic \u003cstrong\u003eDCMT 0702--\u003c\/strong\u003e carbide or cermet inserts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; border-bottom: 2px solid #47479F; padding-bottom: 5px; margin-top: 30px;\"\u003e6. BEYOND Brand Premium Grade Selection Guide\u003c\/h2\u003e\n\u003cp\u003eOptimize your machining performance by selecting the ideal BEYOND insert grade matching your specific application:\u003c\/p\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 25px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; min-width: 500px; font-size: 14px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #dddddd; text-align: left;\"\u003eBEYOND Insert Grade\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #dddddd; text-align: left;\"\u003eCoating Architecture \u0026amp; Substrate\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #dddddd; text-align: left;\"\u003eMaterial Matrix Focus\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 #dddddd; font-weight: bold; color: #47479f;\"\u003eBYM11 (CVD Grade)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eThick Multilayer TiN + Al2O3 Thermal Shield\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eOutstanding tool life during high-speed continuous internal turning of carbon steel, alloy steels, and pre-hardened tool metals.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd; font-weight: bold; color: #47479f;\"\u003eBYS25 (PVD Grade)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eNano-Structured TiAlN Ultra-Hard Wear Coat\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eHigh thermal defense profile. Ideal for interrupted cuts, tough scale layers, and 304\/316 austenitic stainless steels.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd; font-weight: bold; color: #47479f;\"\u003eBYK15 (Uncoated Grade)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eMirror-Polished Micro-Grain Carbide Substrate\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003ePrevents built-up edge (BUE). Built for high-speed turned paths in aluminum alloys, brass, copper, and structural polymers.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; border-bottom: 2px solid #47479F; padding-bottom: 5px; margin-top: 30px;\"\u003e7. Why Choose BEYOND CNC Tools?\u003c\/h2\u003e\n\u003cp\u003eBEYOND delivers world-class, industrial-grade metal cutting solutions designed to maintain tight micro-tolerances under harsh workshop parameters. By utilizing high-tensile alloy chemistry, specialized heat treatments, and precision CNC-ground insert pockets, we guarantee maximum structural dampening, reduced flank wear, and minimized machining downtime on your workshop floor.\u003c\/p\u003e\n\u003ch3 style=\"color: #333; font-size: 16px; margin-top: 20px;\"\u003eGlobal Machinist Feedback\u003c\/h3\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 15px; margin-bottom: 25px;\"\u003e\n\u003cdiv style=\"border: 1px solid #e0e0e0; padding: 15px; border-radius: 6px; background-color: #ffffff; box-shadow: 0 2px 4px rgba(0,0,0,0.01);\"\u003e\n\u003cdiv style=\"color: #ffcc00; font-size: 16px; margin-bottom: 5px;\"\u003e★★★★★\u003c\/div\u003e\n\u003cp style=\"margin: 0 0 8px 0; font-size: 13px; font-weight: bold;\"\u003eRobert V. — United States\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 13px; color: #555;\"\u003e\"Outstanding rigidity for a 16mm left-hand bar. Did a series of deep back-boring cycles on 4140 chrome-moly steel. Absolute zero chatter and hit a superb surface finish.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #e0e0e0; padding: 15px; border-radius: 6px; background-color: #ffffff; box-shadow: 0 2px 4px rgba(0,0,0,0.01);\"\u003e\n\u003cdiv style=\"color: #ffcc00; font-size: 16px; margin-bottom: 5px;\"\u003e★★★★★\u003c\/div\u003e\n\u003cp style=\"margin: 0 0 8px 0; font-size: 13px; font-weight: bold;\"\u003eDieter M. — Germany\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 13px; color: #555;\"\u003e\"Sehr gut verarbeitet. The DCMT0702 pocket seating is beautifully ground and flush aligned. Perfect left-hand orientation execution on our indexable turret.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #e0e0e0; padding: 15px; border-radius: 6px; background-color: #ffffff; box-shadow: 0 2px 4px rgba(0,0,0,0.01);\"\u003e\n\u003cdiv style=\"color: #ffcc00; font-size: 16px; margin-bottom: 5px;\"\u003e★★★★☆\u003c\/div\u003e\n\u003cp style=\"margin: 0 0 8px 0; font-size: 13px; font-weight: bold;\"\u003eGiuseppe T. — Italy\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 13px; color: #555;\"\u003e\"Utensile robusto e preciso. The clearance angle allows excellent internal shoulder profiling. Swarf evacuates easily even from narrow blind holes.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #e0e0e0; padding: 15px; border-radius: 6px; background-color: #ffffff; box-shadow: 0 2px 4px rgba(0,0,0,0.01);\"\u003e\n\u003cdiv style=\"color: #ffcc00; font-size: 16px; margin-bottom: 5px;\"\u003e★★★★★\u003c\/div\u003e\n\u003cp style=\"margin: 0 0 8px 0; font-size: 13px; font-weight: bold;\"\u003eYukihiro S. — Japan\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 13px; color: #555;\"\u003e\"Used on our automated sub-spindle setups for back facing. Very durable alloy body, insert screw thread handles continuous high torque adjustments flawlessly.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #e0e0e0; padding: 15px; border-radius: 6px; background-color: #ffffff; box-shadow: 0 2px 4px rgba(0,0,0,0.01);\"\u003e\n\u003cdiv style=\"color: #ffcc00; font-size: 16px; margin-bottom: 5px;\"\u003e★★★★★\u003c\/div\u003e\n\u003cp style=\"margin: 0 0 8px 0; font-size: 13px; font-weight: bold;\"\u003eCarlos M. — Mexico\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 13px; color: #555;\"\u003e\"Excellent price-to-performance ratio. Holds the tight tolerances we need for hydraulic valve bodies. Will definitely restock this BEYOND tool bar.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; border-bottom: 2px solid #47479F; padding-bottom: 5px; margin-top: 30px;\"\u003e8. AI-Style Engineering Support Engine (FAQ)\u003c\/h2\u003e\n\u003cdiv style=\"margin-bottom: 15px; padding: 12px; background-color: #f9f9f9; border-radius: 4px;\"\u003e\n\u003cp style=\"margin: 0 0 5px 0; font-weight: bold; color: #47479f;\"\u003eQ1: What is the recommended maximum stable overhang for this 16mm steel boring bar?\u003c\/p\u003e\n\u003cp style=\"margin: 0; color: #444;\"\u003eA1: For standard high-tensile steel shank tool holders, the engineering thumb rule is an overhang depth up to 4x the shank diameter (4xD). For this 16mm bar, you can stably run depths up to 64mm without experiencing harmonic chatter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 15px; padding: 12px; background-color: #f9f9f9; border-radius: 4px;\"\u003e\n\u003cp style=\"margin: 0 0 5px 0; font-weight: bold; color: #47479f;\"\u003eQ2: Can I use DCMT 11T3 inserts with this tool holder?\u003c\/p\u003e\n\u003cp style=\"margin: 0; color: #444;\"\u003eA2: No. The pocket geometry of the S16Q-SDUCL07 is explicitly milled for the smaller DCMT 0702-- (7mm cutting edge length) insert. Attempting to fit a larger 11mm insert will ruin the seating alignment and fail to lock.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 15px; padding: 12px; background-color: #f9f9f9; border-radius: 4px;\"\u003e\n\u003cp style=\"margin: 0 0 5px 0; font-weight: bold; color: #47479f;\"\u003eQ3: Why choose a left-hand (SDUCL) bar over a right-hand (SDUCR) model?\u003c\/p\u003e\n\u003cp style=\"margin: 0; color: #444;\"\u003eA3: Left-hand boring bars are essential when machining on lathes where the turret is located on the operator side, for reverse spindle setups, or for specific inner profiling operations that feed outward\/back-facing from the chuck.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; border-bottom: 2px solid #47479F; padding-bottom: 5px; margin-top: 30px;\"\u003e9. Technical Maintenance \u0026amp; Diagnostic Guidelines\u003c\/h2\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 15px; margin-top: 15px;\"\u003e\n\u003cdiv style=\"background-color: #f0f2f5; padding: 15px; border-radius: 4px;\"\u003e\n\u003ch4 style=\"margin: 0 0 8px 0; color: #333; font-size: 14px; border-left: 3px solid #47479F; padding-left: 8px;\"\u003eEquivalent Industry Models\u003c\/h4\u003e\n\u003cp style=\"margin: 0; font-size: 12px; color: #555;\"\u003eFully interchangeable with universal ISO metric standard catalog designation code S16Q-SDUCL07. Serves as a heavy-duty drop-in replacement for any global 16mm or 5\/8-inch Left-Hand tool holder configuration carrying 55-degree positive diamond profiles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #f0f2f5; padding: 15px; border-radius: 4px;\"\u003e\n\u003ch4 style=\"margin: 0 0 8px 0; color: #333; font-size: 14px; border-left: 3px solid #47479F; padding-left: 8px;\"\u003eTroubleshooting Tips\u003c\/h4\u003e\n\u003cp style=\"margin: 0; font-size: 12px; color: #555;\"\u003e\u003cstrong\u003eMicro-Vibration \/ Chatter:\u003c\/strong\u003e Ensure the chucking engagement length of the shank is at least 3x the diameter. If possible, lower the nose radius of your insert (e.g., from 0.4mm to 0.2mm) to reduce radial push.\u003cbr\u003e\u003cstrong\u003ePremature Pocket Wear:\u003c\/strong\u003e Check the screw torque. Ensure the pocket is cleared of microscopic carbon fines using compressed air before locking down a new insert.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #f0f2f5; padding: 15px; border-radius: 4px;\"\u003e\n\u003ch4 style=\"margin: 0 0 8px 0; color: #333; font-size: 14px; border-left: 3px solid #47479F; padding-left: 8px;\"\u003eWorkpiece Material Matrix\u003c\/h4\u003e\n\u003cp style=\"margin: 0; font-size: 12px; color: #555;\"\u003eEngineered to operate seamlessly across high-frequency industrial metal categories: P (Carbon \u0026amp; Structural Alloy Steels), M (Stainless Steel series), K (Grey \u0026amp; Ductile Cast Irons), N (Aluminum alloys \u0026amp; Copper lines), and S (High-temperature superalloys).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":43614417682604,"sku":"S16Q-SDUCL07","price":18.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/BEYOND_S16Q-SDUCL07_16mm_CNC_internal_boring_bar_steel_lathe_turning_tool_holder_left_hand_for_DCMT_0702_inserts.jpg?v=1780960437","url":"https:\/\/cnchome-beyond.com\/products\/beyond-s16q-sducl07-boring-bar-16mm-cnc-internal-turning","provider":"CNCHome-Beyond","version":"1.0","type":"link"}