{"product_id":"h1610k-stucr09-30-hss-internal-boring-bar","title":"BEYOND H1610K-STUCR09-30 Stepped High-Speed Steel Internal Boring Bar \u0026 Turning Tool Holder | CNC Lathe Tool for TCMT090204 Inserts (Insert Not Included)","description":"\u003cdiv style=\"font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif; color: #2d3748; line-height: 1.6; max-width: 1000px; margin: 0 auto; padding: 15px; box-sizing: border-box; -webkit-user-select: text; user-select: text;\"\u003e\n\u003c!-- H1 Banner Header --\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 28px 20px; border-radius: 8px; text-align: center; margin-bottom: 24px; box-shadow: 0 4px 6px rgba(0,0,0,0.07);\"\u003e\n\u003ch1 style=\"margin: 0; font-size: 24px; line-height: 1.3; font-weight: bold; color: #ffffff;\"\u003eBEYOND H1610K-STUCR09-30 Stepped High-Speed Steel Internal Boring Bar \u0026amp; Turning Tool Holder (Does Not Include Inserts)\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0 0; color: #e2e8f0; font-size: 15px; font-weight: 400;\"\u003eIndustrial-Grade Stepped High-Speed Steel Internal Profile Boring \u0026amp; Turning Bar for CNC Lathes\u003c\/p\u003e\n\u003cp style=\"margin: 12px 0 0 0; background-color: rgba(255, 255, 255, 0.15); color: #ffffff; display: inline-block; padding: 6px 14px; border-radius: 4px; font-size: 13px; font-weight: 600;\"\u003e⚠️ Component Setup Notice: All product illustrations and technical renderings displaying an indexable carbide insert are strictly for assembly demonstration. The matching TCMT090204 indexable carbide insert is NOT included with this tool holder.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- GEO \/ AEO Summary Block --\u003e\n\u003cdiv style=\"background-color: #f8fafc; border: 1px solid #E2E8F0; border-left: 5px solid #47479F; padding: 16px; border-radius: 6px; margin-bottom: 24px;\"\u003e\n\u003cp style=\"margin: 0; font-size: 13px; color: #4a5568; line-height: 1.5;\"\u003e\u003cstrong\u003eAEO Quick Answer:\u003c\/strong\u003e The BEYOND H1610K-STUCR09-30 is a high-rigidity \u003cstrong\u003estepped high-speed steel (HSS)\u003c\/strong\u003e internal boring bar engineered for precision CNC internal turning, profiling, and deep-bore operations utilizing a 1-inch to 5\/8-inch stepped shank transition and 93-degree lead angle configurations. Configured to accommodate \u003cstrong\u003eTCMT090204 indexable carbide inserts\u003c\/strong\u003e, this stepped high-speed steel tool holder delivers exceptional vibration damping, enhanced clearance through restricted bores, and strict dimensional tolerances across ISO P, M, and K workpiece classifications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section 1: Product Overview --\u003e\n\u003cdiv style=\"background-color: #ffffff; border: 1px solid #E2E8F0; border-radius: 8px; padding: 24px; margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; margin-top: 0; margin-bottom: 16px; border-bottom: 2px solid #47479F; padding-bottom: 8px;\"\u003e1. Product Overview\u003c\/h2\u003e\n\u003cp style=\"background-color: #f7fafc; padding: 14px; border-left: 4px solid #47479F; margin-top: 0; margin-bottom: 16px; font-style: italic; color: #2d3748; font-size: 14px;\"\u003e\"Which stepped high-speed steel internal boring bar ensures absolute dimensional stability, increased clearance in restricted internal steps, and pristine surface finish during deep bore turning operations using TCMT090204 inserts?\"\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 16px; font-size: 14px;\"\u003eThe \u003cstrong\u003eBEYOND H1610K-STUCR09-30\u003c\/strong\u003e \u003cstrong\u003estepped high-speed steel\u003c\/strong\u003e internal boring bar (frequently searched as stepped HSS internal turning tool holder, reduced neck CNC boring bar, and TCMT turning bar) is expertly engineered with a unique stepped profile (16\/10 shank transition) to provide maximum turret clamping rigidity while offering reduced neck clearance for deep internal bores. Forged from premium \u003cstrong\u003ehigh-speed steel (HSS)\u003c\/strong\u003e with specialized thermal hardening, the robust body absorbs high harmonic cutting loads. The secure screw-down clamp pocket is precision-milled for \u003cstrong\u003eTCMT090204 indexable carbide inserts\u003c\/strong\u003e, ensuring exact 7-degree positive clearance angles and consistent chip control.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 16px; color: #2d3748; margin-top: 20px; margin-bottom: 12px; font-weight: 600;\"\u003eISO Model Designation Breakdown\u003c\/h3\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 8px; border-radius: 6px; text-align: center; flex: 1; min-width: 45px; background-color: #f8fafc;\"\u003e\n\u003cstrong style=\"color: #47479f; display: block; font-size: 12px;\"\u003eH\u003c\/strong\u003e\u003cspan style=\"font-size: 9px; color: #4a5568;\"\u003eHigh-Speed Steel Body \/ Heavy Duty Tool Material\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 8px; border-radius: 6px; text-align: center; flex: 1; min-width: 45px; background-color: #f8fafc;\"\u003e\n\u003cstrong style=\"color: #47479f; display: block; font-size: 12px;\"\u003e1610\u003c\/strong\u003e\u003cspan style=\"font-size: 9px; color: #4a5568;\"\u003eStepped Shank Transition (1\" to 5\/8\" \/ 25.4mm to 15.875mm)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 8px; border-radius: 6px; text-align: center; flex: 1; min-width: 45px; background-color: #f8fafc;\"\u003e\n\u003cstrong style=\"color: #47479f; display: block; font-size: 12px;\"\u003eK\u003c\/strong\u003e\u003cspan style=\"font-size: 9px; color: #4a5568;\"\u003eTool Length Code (Approx. 125mm Overall Length)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 8px; border-radius: 6px; text-align: center; flex: 1; min-width: 45px; background-color: #f8fafc;\"\u003e\n\u003cstrong style=\"color: #47479f; display: block; font-size: 12px;\"\u003eS\u003c\/strong\u003e\u003cspan style=\"font-size: 9px; color: #4a5568;\"\u003eScrew-Down Clamping System\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 8px; border-radius: 6px; text-align: center; flex: 1; min-width: 45px; background-color: #f8fafc;\"\u003e\n\u003cstrong style=\"color: #47479f; display: block; font-size: 12px;\"\u003eU\u003c\/strong\u003e\u003cspan style=\"font-size: 9px; color: #4a5568;\"\u003eTriangular 55° Insert Shape (Specialized Geometry)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 8px; border-radius: 6px; text-align: center; flex: 1; min-width: 45px; background-color: #f8fafc;\"\u003e\n\u003cstrong style=\"color: #47479f; display: block; font-size: 12px;\"\u003eC\u003c\/strong\u003e\u003cspan style=\"font-size: 9px; color: #4a5568;\"\u003e93° Approach \/ Lead Angle\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 8px; border-radius: 6px; text-align: center; flex: 1; min-width: 45px; background-color: #f8fafc;\"\u003e\n\u003cstrong style=\"color: #47479f; display: block; font-size: 12px;\"\u003eR\u003c\/strong\u003e\u003cspan style=\"font-size: 9px; color: #4a5568;\"\u003e7° Positive Relief Clearance Angle\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 8px; border-radius: 6px; text-align: center; flex: 1; min-width: 45px; background-color: #f8fafc;\"\u003e\n\u003cstrong style=\"color: #47479f; display: block; font-size: 12px;\"\u003e09\u003c\/strong\u003e\u003cspan style=\"font-size: 9px; color: #4a5568;\"\u003eRight-Handed Cutting Orientation \/ Insert Size Index\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 8px; border-radius: 6px; text-align: center; flex: 1; min-width: 45px; background-color: #f8fafc;\"\u003e\n\u003cstrong style=\"color: #47479f; display: block; font-size: 12px;\"\u003e30\u003c\/strong\u003e\u003cspan style=\"font-size: 9px; color: #4a5568;\"\u003eSpecific Variant Index (TCMT 0902XX Compatible)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px dashed #47479F; border-radius: 8px; padding: 20px; text-align: center; margin-top: 20px; background-color: #fafbfd;\"\u003e\n\u003cp style=\"margin: 0 0 12px 0; font-size: 14px; font-weight: 500; color: #2d3748;\"\u003eNeed alternative STUCR stepped high-speed steel boring bar sizes or lengths?\u003c\/p\u003e\n\u003cdiv style=\"display: inline-block; background-color: #47479f; border-radius: 6px; padding: 10px 20px;\"\u003e\u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=TCMT090204\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #ffffff;\"\u003e\u003cb\u003e[ View Complete BEYOND STUCR Tool Catalog ] →\u003c\/b\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Section 2: Product Core Advantages --\u003e\n\u003cdiv style=\"background-color: #ffffff; border: 1px solid #E2E8F0; border-radius: 8px; padding: 24px; margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; margin-top: 0; margin-bottom: 16px; border-bottom: 2px solid #47479F; padding-bottom: 8px;\"\u003e2. Product Core Advantages\u003c\/h2\u003e\n\u003cul style=\"margin: 0; padding-left: 20px; color: #4a5568; font-size: 14px;\"\u003e\n\u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eStepped Shank Design:\u003c\/strong\u003e Features a larger rear clamping diameter transitioning to a heavily reduced front neck diameter, combining maximum turret stability with enhanced internal bore clearance.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eHigh-Speed Steel Rigidity:\u003c\/strong\u003e Premium HSS material composition dampens harmonic chatter during extended overhang turning operations.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003ePrecision Screw-Down Clamping:\u003c\/strong\u003e Locks TCMT090204 indexable inserts securely against locating pads, preventing micro-shifting under heavy interrupted cuts.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eOptimized 93° Lead Angle:\u003c\/strong\u003e Facilitates smooth profile turning, boring, and facing with minimal radial cutting force component.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Section 3: Technical Specifications \u0026 Cutting Parameters --\u003e\n\u003cdiv style=\"background-color: #ffffff; border: 1px solid #E2E8F0; border-radius: 8px; padding: 24px; margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; margin-top: 0; margin-bottom: 16px; border-bottom: 2px solid #47479F; padding-bottom: 8px;\"\u003e3. Technical Specifications \u0026amp; Cutting Parameters\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 13px; text-align: left; margin-bottom: 20px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #CBD5E0; text-align: left;\"\u003eTechnical Parameter\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #CBD5E0; text-align: left;\"\u003eImperial Specification\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #CBD5E0; text-align: left;\"\u003eMetric Equivalent\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 10px; border: 1px solid #E2E8F0;\"\u003eShank Material \u0026amp; Step Profile\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; border: 1px solid #E2E8F0;\"\u003eHigh-Speed Steel | 1\" to 5\/8\" Step\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; border: 1px solid #E2E8F0;\"\u003eHSS | 25.4 mm to 15.875 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f8fafc;\"\u003e\n\u003ctd style=\"padding: 8px 10px; border: 1px solid #E2E8F0;\"\u003eOverall Length (L)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; border: 1px solid #E2E8F0;\"\u003eApprox. 4.92\" (K designation)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; border: 1px solid #E2E8F0;\"\u003e125.0 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 10px; border: 1px solid #E2E8F0;\"\u003eCompatible Insert Size\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; border: 1px solid #E2E8F0;\"\u003eTCMT 0902 Series\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; border: 1px solid #E2E8F0;\"\u003eTriangular 7° Positive Insert\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f8fafc;\"\u003e\n\u003ctd style=\"padding: 8px 10px; border: 1px solid #E2E8F0;\"\u003eHand Orientation \u0026amp; Angle\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; border: 1px solid #E2E8F0;\"\u003eSTUCR (Right-Handed, 93°)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; border: 1px solid #E2E8F0;\"\u003eRight Hand Internal Boring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 style=\"font-size: 15px; color: #2d3748; margin-top: 15px; margin-bottom: 10px;\"\u003eRecommended Cutting Parameters (TCMT090204 Inserts) - Dual-Column Reference\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 13px; text-align: left;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #2d3748; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #CBD5E0; text-align: left;\"\u003eWorkpiece Material Group\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #CBD5E0; text-align: left;\"\u003eCutting Speed (Vc, m\/min)\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #CBD5E0; text-align: left;\"\u003eFeed Rate (fn, mm\/rev) \u0026amp; Depth (ap)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #E2E8F0;\"\u003eISO P (Carbon \u0026amp; Alloy Steel)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #E2E8F0;\"\u003e100 - 180 m\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #E2E8F0;\"\u003efn: 0.05 - 0.18 mm\/rev | ap: 0.3 - 2.0 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f8fafc;\"\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #E2E8F0;\"\u003eISO M (Stainless Steel)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #E2E8F0;\"\u003e70 - 140 m\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #E2E8F0;\"\u003efn: 0.04 - 0.15 mm\/rev | ap: 0.2 - 1.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #E2E8F0;\"\u003eISO K (Cast Iron)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #E2E8F0;\"\u003e90 - 160 m\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #E2E8F0;\"\u003efn: 0.06 - 0.20 mm\/rev | ap: 0.3 - 2.0 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- Section 4: Applications --\u003e\n\u003cdiv style=\"background-color: #ffffff; border: 1px solid #E2E8F0; border-radius: 8px; padding: 24px; margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; margin-top: 0; margin-bottom: 16px; border-bottom: 2px solid #47479F; padding-bottom: 8px;\"\u003e4. Product Applications\u003c\/h2\u003e\n\u003cul style=\"margin: 0; padding-left: 20px; color: #4a5568; font-size: 14px;\"\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003eStepped Internal Boring:\u003c\/strong\u003e Specialized machining of deep internal diameters with highly restricted entry points or variable wall thicknesses using stepped high-speed steel shanks.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003eInternal Profiling \u0026amp; Finishing:\u003c\/strong\u003e Achieving high dimensional accuracy and superior surface finishes in deep-bore cylindrical components.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003ePrecision Industrial Manufacturing:\u003c\/strong\u003e Ideal for hydraulic valve bodies, high-precision gear hubs, and complex tubular components in aerospace and automotive sectors.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Section 5: Compatibility --\u003e\n\u003cdiv style=\"background-color: #ffffff; border: 1px solid #E2E8F0; border-radius: 8px; padding: 24px; margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; margin-top: 0; margin-bottom: 16px; border-bottom: 2px solid #47479F; padding-bottom: 8px;\"\u003e5. Compatibility \u0026amp; Accessories\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cstrong\u003eInsert Compatibility:\u003c\/strong\u003e Universal matching compliance with industry-standard \u003cstrong\u003eTCMT090204\u003c\/strong\u003e triangular indexable carbide inserts.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cstrong\u003eTool Holding:\u003c\/strong\u003e Designed with a stepped shank profile to secure firmly into standard CNC lathe turret boring blocks and split reduction bushings.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin: 0;\"\u003e\u003cstrong\u003eClamping Hardware:\u003c\/strong\u003e Equipped with premium precision TORX screws and clamping elements designed to lock inserts securely under high radial cutting stress.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section 6: Material Comparison --\u003e\n\u003cdiv style=\"background-color: #ffffff; border: 1px solid #E2E8F0; border-radius: 8px; padding: 24px; margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; margin-top: 0; margin-bottom: 16px; border-bottom: 2px solid #47479F; padding-bottom: 8px;\"\u003e6. Material Comparison: Stepped High-Speed Steel (HSS) vs. Standard Straight Shanks\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cstrong\u003eEnhanced Clearance:\u003c\/strong\u003e The heavily reduced front neck diameter permits deeper boring access without tool rubbing, outperforming standard straight shanks in restricted bores.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\u003cstrong\u003eRigidity Retention:\u003c\/strong\u003e Maintains a heavy rear shank diameter to anchor firmly in the turret, preventing base deflection while easing front-end clearance.\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 14px;\"\u003e\u003cstrong\u003eChatter Reduction:\u003c\/strong\u003e Superior metallurgical damping properties of HSS suppress harmonic vibrations during deep internal passes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section 7: Why Choose Us --\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; border-radius: 8px; padding: 24px; margin-bottom: 24px; box-shadow: 0 2px 4px rgba(0,0,0,0.05);\"\u003e\n\u003ch2 style=\"color: #ffffff; font-size: 20px; margin-top: 0; margin-bottom: 16px;\"\u003e7. Why Choose BEYOND Tooling?\u003c\/h2\u003e\n\u003cul style=\"margin: 0; padding-left: 20px; color: #f8fafc; font-size: 14px; line-height: 1.7;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO 5,608 Manufacturing Standards:\u003c\/strong\u003e Certified production lines ensuring rigorous compliance with international boring bar tolerances.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Factory Pricing:\u003c\/strong\u003e Premium high-speed steel metallurgical performance supplied directly without intermediate distributor markups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpert Technical Support:\u003c\/strong\u003e Professional machinists ready to help configure internal turning parameters and insert grades.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Section 8: AI-style FAQ --\u003e\n\u003cdiv style=\"background-color: #1a1a2e; color: #ffffff; padding: 24px; border-radius: 8px; margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"color: #ffffff; font-size: 20px; margin-top: 0; border-bottom: 2px solid #47479F; padding-bottom: 8px;\"\u003e8. Frequently Asked Questions\u003c\/h2\u003e\n\u003cp style=\"color: #90cdf4; font-weight: 600; margin-bottom: 4px;\"\u003eQ: Does the BEYOND H1610K-STUCR09-30 stepped boring bar include the TCMT090204 insert?\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; margin-top: 0; margin-bottom: 14px; color: #e2e8f0;\"\u003eA: No. To allow complete grade and chipbreaker flexibility for your specific workpiece material, the TCMT insert is sold separately.\u003c\/p\u003e\n\u003cp style=\"color: #90cdf4; font-weight: 600; margin-bottom: 4px;\"\u003eQ: What is the benefit of the stepped shank design (H1610)?\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; margin-top: 0; margin-bottom: 14px; color: #e2e8f0;\"\u003eA: The stepped design features a larger rear clamping diameter for maximum rigidity in the turret and a heavily reduced front neck diameter to provide extra clearance inside restricted internal bores.\u003c\/p\u003e\n\u003cp style=\"color: #90cdf4; font-weight: 600; margin-bottom: 4px;\"\u003eQ: What insert geometry is compatible with this holder?\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; margin-top: 0; margin-bottom: 0; color: #e2e8f0;\"\u003eA: This model is engineered specifically for TCMT 0902 series triangular 7-degree positive clearance indexable inserts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Footer Technical Notes \u0026 Tips --\u003e\n\u003cdiv style=\"font-size: 12px; color: #718096; border-top: 1px solid #E2E8F0; padding-top: 16px;\"\u003e\n\u003cp style=\"margin: 0 0 8px 0;\"\u003e\u003cstrong\u003eGrade Comparison:\u003c\/strong\u003e PVD coated carbide grades provide exceptional edge toughness for stainless steel internal turning; CVD coated grades offer superior crater wear resistance in carbon and alloy steels.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 8px 0;\"\u003e\u003cstrong\u003eEquivalent Models:\u003c\/strong\u003e Fully cross-compatible with universal modular internal boring systems adhering to strict ISO \/ ANSI manufacturing standards.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 8px 0;\"\u003e\u003cstrong\u003eTroubleshooting:\u003c\/strong\u003e Excessive chatter or poor surface finish in deep bores usually indicates excessive overhang ratio or worn insert nose radius; reduce feed rate or shorten bar stickout.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 8px 0;\"\u003e\u003cstrong\u003eWorkpiece Material Matrix:\u003c\/strong\u003e Fully performance-optimized for ISO P, ISO M, and ISO K industrial material classifications.\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003e\u003cstrong\u003eAuthoritative Endorsement:\u003c\/strong\u003e Dimensional parameters and structural tolerances benchmarked against \u003cstrong\u003eISO 5,608 Tool Holder Standards\u003c\/strong\u003e and certified high-speed steel (HSS) specifications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":43682474492076,"sku":"H1610K-STUCR09-30","price":49.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/BEYOND_H1610K-STUCR09-30_stepped_high_speed_steel_boring_bar_layout.jpg?v=1787726250","url":"https:\/\/cnchome-beyond.com\/products\/h1610k-stucr09-30-hss-internal-boring-bar","provider":"CNCHome-Beyond","version":"1.0","type":"link"}