{"product_id":"dnr0006k06-a12-internal-turning-tool-holder","title":"BEYOND DNR0006K06-A12 Step Spring Steel Internal Threading Boring Bar – CNC Lathe Screw Thread Turning Tool Holder for 06IR Inserts (Dual Diameter 6mm Tip \u0026 12mm Base, Insert Not Included)","description":"\u003cdiv style=\"font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; color: #333333; line-height: 1.6; max-width: 1000px; margin: 0 auto; padding: 20px; box-sizing: border-box; -webkit-user-select: text; user-select: text;\"\u003e\n\u003c!-- H1 Banner --\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 30px; border-radius: 8px; text-align: center; margin-bottom: 30px;\"\u003e\n\u003ch1 style=\"margin: 0; font-size: 26px; color: #ffffff;\"\u003eBEYOND DNR0006K06-A12 Step Spring Steel Internal Threading Boring Bar\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0; color: #ffffff; opacity: 0.95; font-size: 16px;\"\u003ePrecision Dual-Diameter Internal Screw Thread Turning Tool Holder for 06IR Inserts | Industrial Grade CNC System\u003c\/p\u003e\n\u003cp style=\"margin: 8px 0 0; color: #ffeb3b; font-size: 13px; font-weight: bold;\"\u003e* Note: Indexable threading inserts shown in product images are for demonstration purposes only and are NOT included.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- 1. Product Overview --\u003e\n\u003cdiv style=\"background-color: #ffffff; border: 1px solid #e2e8f0; border-radius: 8px; padding: 24px; margin-bottom: 20px;\"\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; margin-top: 0; 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: 16px 0; font-style: italic; color: #2d3748; font-size: 14px;\"\u003e\"Which industrial step spring steel internal threading boring bar provides maximum harmonic stability and precise screw pitch accuracy for ultra-fine micro-bore internal threads using 06IR inserts?\"\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 14px;\"\u003eThe \u003cstrong\u003eBEYOND DNR0006K06-A12\u003c\/strong\u003e is a professional-grade step internal threading tool holder engineered for high-precision CNC lathe operations. Featuring a specialized dual-diameter configuration—combining a 6mm ultra-small diameter tip for deep micro-bore clearance and a 12mm large-diameter base for maximum structural rigidity—this bar dampens chatter and absorbs cutting harmonics. Fabricated from premium spring steel with a rigid screw-down clamping mechanism, it firmly seats \u003cstrong\u003e06IR\u003c\/strong\u003e indexable threading inserts, ensuring exceptional flank engagement, correct helix angle alignment, and superior surface integrity.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 16px; color: #1a202c; margin-top: 20px; margin-bottom: 12px;\"\u003eISO \/ ANSI Standard Nomenclature Breakdown: DNR0006K06-A12\u003c\/h3\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 8px; border-radius: 6px; text-align: center; flex: 1; min-width: 60px; background: #f8fafc;\"\u003e\n\u003cstrong style=\"color: #47479f; display: block; font-size: 11px;\"\u003eDN\u003c\/strong\u003e\u003csmall style=\"color: #4a5568; font-size: 10px;\"\u003eHolder Type\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 8px; border-radius: 6px; text-align: center; flex: 1; min-width: 60px; background: #f8fafc;\"\u003e\n\u003cstrong style=\"color: #47479f; display: block; font-size: 11px;\"\u003eR0006\u003c\/strong\u003e\u003csmall style=\"color: #4a5568; font-size: 10px;\"\u003eSmall Dia. (6mm)\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 8px; border-radius: 6px; text-align: center; flex: 1; min-width: 60px; background: #f8fafc;\"\u003e\n\u003cstrong style=\"color: #47479f; display: block; font-size: 11px;\"\u003eK\u003c\/strong\u003e\u003csmall style=\"color: #4a5568; font-size: 10px;\"\u003eLength Code (125mm)\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 8px; border-radius: 6px; text-align: center; flex: 1; min-width: 60px; background: #f8fafc;\"\u003e\n\u003cstrong style=\"color: #47479f; display: block; font-size: 11px;\"\u003e06\u003c\/strong\u003e\u003csmall style=\"color: #4a5568; font-size: 10px;\"\u003eInsert Size (06IR)\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 8px; border-radius: 6px; text-align: center; flex: 1; min-width: 60px; background: #f8fafc;\"\u003e\n\u003cstrong style=\"color: #47479f; display: block; font-size: 11px;\"\u003eA12\u003c\/strong\u003e\u003csmall style=\"color: #4a5568; font-size: 10px;\"\u003eLarge Base (12mm)\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- 2. Core Advantages --\u003e\n\u003cdiv style=\"background-color: #ffffff; border: 1px solid #e2e8f0; border-radius: 8px; padding: 24px; margin-bottom: 20px;\"\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; margin-top: 0; border-bottom: 2px solid #47479F; padding-bottom: 8px;\"\u003e2. Product Core Advantages\u003c\/h2\u003e\n\u003cul style=\"margin: 0; padding-left: 20px; color: #2d3748;\"\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003eDual-Diameter Step Design:\u003c\/strong\u003e 6mm front tip grants clearance into extremely restrictive micro-bores, while the 12mm rear base provides heavy-duty rigidity.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003ePrecision Screw-Down Clamping:\u003c\/strong\u003e Locks 06IR inserts securely in place to eliminate micro-movement during multi-pass threading cycles.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003eSpring Steel Damping:\u003c\/strong\u003e Effectively resists deflection and absorbs chatter frequencies in deep micro-internal bore configurations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- 3. Technical Specifications --\u003e\n\u003cdiv style=\"background-color: #ffffff; border: 1px solid #e2e8f0; border-radius: 8px; padding: 24px; margin-bottom: 20px;\"\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; margin-top: 0; 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; margin-bottom: 16px;\"\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;\"\u003eMetric \u0026amp; Inch Specification\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #cbd5e0; text-align: left;\"\u003eRecommended Threading Parameters\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 #cbd5e0;\"\u003eMetric Model: DNR0006K06-A12\u003cbr\u003eInch Equivalent Profile: ~1\/4\" Tip to 15\/32\" Base Shank Class\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #cbd5e0;\"\u003eCutting Speed (Vc): 60 - 120 m\/min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f8fafc;\"\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #cbd5e0;\"\u003eShank Configuration: Step Internal Threading Bar\u003cbr\u003eCompatible Insert: 06IR Series\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #cbd5e0;\"\u003eInfeed Strategy: Flank Infeed (1st pass ~0.06mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"border: 2px dashed #47479F; border-radius: 8px; padding: 20px; text-align: center; background-color: #ffffff; margin-top: 20px;\"\u003e\n\u003cp style=\"margin: 0 0 12px 0; font-size: 16px; color: #47479f; font-weight: bold;\"\u003eExplore Full Internal Threading Tool Collection\u003c\/p\u003e\n\u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=06IR\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #ffffff;\"\u003e\u003cspan style=\"display: inline-block; background-color: rgb(71, 71, 159); padding: 12px 24px; border-radius: 6px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cb\u003e[View Threading Bar Collection] →\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- 4. Applications --\u003e\n\u003cdiv style=\"background-color: #ffffff; border: 1px solid #e2e8f0; border-radius: 8px; padding: 24px; margin-bottom: 20px;\"\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; margin-top: 0; border-bottom: 2px solid #47479F; padding-bottom: 8px;\"\u003e4. Product Application Scenarios\u003c\/h2\u003e\n\u003cp\u003eEngineered for CNC lathe internal thread cutting applications requiring deep reach into ultra-small diameters, including micro-metric threads, instrument screw threads, and precision miniature components across steel, alloy bushings, and medical-grade stainless parts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- 5. Compatibility --\u003e\n\u003cdiv style=\"background-color: #ffffff; border: 1px solid #e2e8f0; border-radius: 8px; padding: 24px; margin-bottom: 20px;\"\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; margin-top: 0; border-bottom: 2px solid #47479F; padding-bottom: 8px;\"\u003e5. Compatibility \u0026amp; System Requirements\u003c\/h2\u003e\n\u003cp\u003eFits standard 12mm lathe tool holders and precision split sleeves (utilizing the 12mm base section). Fully compatible with ISO standard 06IR indexable threading inserts across ultra-fine pitches.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- 6. Material Comparison \u0026 Workpiece Matrix --\u003e\n\u003cdiv style=\"background-color: #ffffff; border: 1px solid #e2e8f0; border-radius: 8px; padding: 24px; margin-bottom: 20px;\"\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; margin-top: 0; border-bottom: 2px solid #47479F; padding-bottom: 8px;\"\u003e6. Workpiece Material Matrix \u0026amp; Grade Comparison\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 13px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #cbd5e0;\"\u003eISO Material Group\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #cbd5e0;\"\u003eWorkpiece Type\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #cbd5e0;\"\u003eThreading Performance\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 #cbd5e0;\"\u003e\u003cstrong\u003eP (Steel)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #cbd5e0;\"\u003eCarbon \u0026amp; Alloy Steel\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #cbd5e0;\"\u003eClean thread flanks, excellent burr control in micro-diameters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f8fafc;\"\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #cbd5e0;\"\u003e\u003cstrong\u003eM (Stainless)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #cbd5e0;\"\u003eAustenitic Stainless Steel\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #cbd5e0;\"\u003eStable chip evacuation in tight blind micro-bores\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #cbd5e0;\"\u003e\u003cstrong\u003eK (Cast Iron)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #cbd5e0;\"\u003eGray \u0026amp; Ductile Iron\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #cbd5e0;\"\u003eHigh wear resistance under dry cutting conditions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- 7. Why Choose Us --\u003e\n\u003cdiv style=\"border: 2px solid #47479F; border-radius: 8px; padding: 24px; margin-bottom: 20px; background-color: #fcfcfc;\"\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; text-align: center; margin-top: 0;\"\u003e7. Why Choose BEYOND Precision Tooling\u003c\/h2\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-top: 16px;\"\u003e\n\u003cdiv style=\"text-align: center; padding: 12px; background: #ffffff; border: 1px solid #e2e8f0; border-radius: 6px;\"\u003e\n\u003cstrong\u003eISO Compliant\u003c\/strong\u003e\u003cbr\u003e\u003csmall style=\"color: #4a5568;\"\u003eStrict adherence to global threading standards.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center; padding: 12px; background: #ffffff; border: 1px solid #e2e8f0; border-radius: 6px;\"\u003e\n\u003cstrong\u003eRigidity Engineered\u003c\/strong\u003e\u003cbr\u003e\u003csmall style=\"color: #4a5568;\"\u003eStep spring steel damping structure.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center; padding: 12px; background: #ffffff; border: 1px solid #e2e8f0; border-radius: 6px;\"\u003e\n\u003cstrong\u003eIndustrial Support\u003c\/strong\u003e\u003cbr\u003e\u003csmall style=\"color: #4a5568;\"\u003eExpert CNC engineering advice.\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- 8. AI-Style FAQ --\u003e\n\u003cdiv style=\"background-color: #1a1a2e; color: #ffffff; padding: 24px; border-radius: 8px; margin-bottom: 20px;\"\u003e\n\u003ch2 style=\"color: #ffffff; font-size: 20px; margin-top: 0; border-bottom: 1px solid #47479F; padding-bottom: 8px;\"\u003e8. AI-Style FAQ \u0026amp; Troubleshooting\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Are 06IR threading inserts included with this boring bar?\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"color: #cbd5e0;\"\u003eA: No, inserts are sold separately to let you match the precise thread pitch and profile required.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the purpose of the 6mm small head and 12mm large base?\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"color: #cbd5e0;\"\u003eA: The 6mm tip provides essential clearance inside tight micro-bores, while the 12mm base maximizes clamping stability in the turret.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the recommended infeed method for internal threading?\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"color: #cbd5e0;\"\u003eA: Flank infeed (modified flank) is strongly recommended to distribute cutting forces evenly on both insert edges.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Footer \u0026 Authoritative Backing --\u003e\n\u003cdiv style=\"margin-top: 24px; font-size: 11px; color: #718096; text-align: center; border-top: 1px solid #e2e8f0; padding-top: 16px;\"\u003eManufactured strictly in accordance with ISO 5608 and ISO 883 manufacturing specifications for indexable threading and turning tool holders, supported by industrial metallurgical validation data.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":43675463418028,"sku":"DNR0006K06-A12","price":22.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/BEYOND_DNR0006K06-A12_spring_steel_internal_threading_boring_bar_side_profile.jpg?v=1786776014","url":"https:\/\/cnchome-beyond.com\/products\/dnr0006k06-a12-internal-turning-tool-holder","provider":"CNCHome-Beyond","version":"1.0","type":"link"}