{"product_id":"beyond-s32t-dclnr12-boring-bar-holder-internal-turning-tool","title":"BEYOND S32T-DCLNR12 (32mm \/ 1-1\/4\" Shank) Right-Hand Internal Boring Bar | Heavy-Duty D-Type Double Clamp ISO Lathe Bar for CNMG 1204 \/ CNMG 432 Carbide Inserts","description":"\u003cstyle\u003e\n  .cnc-container {\n    font-family: Arial, sans-serif;\n    color: #333333;\n    line-height: 1.25;\n    max-width: 1200px;\n    margin: 0 auto;\n    padding: 15px;\n    user-select: text !important;\n    -webkit-user-select: text !important;\n  }\n  .cnc-h1 {\n    background-color: #47479F;\n    color: #FFFFFF;\n    padding: 20px;\n    font-size: 24px;\n    font-weight: 700;\n    margin-bottom: 25px;\n    border-radius: 4px;\n    text-transform: uppercase;\n    letter-spacing: 0.5px;\n  }\n  .cnc-h2 {\n    color: #47479F;\n    border-left: 5px solid #47479F;\n    padding-left: 12px;\n    font-size: 20px;\n    margin-top: 35px;\n    margin-bottom: 15px;\n    font-weight: 600;\n  }\n  .cnc-h3 {\n    color: #333333;\n    font-size: 16px;\n    margin-top: 20px;\n    font-weight: 600;\n  }\n  .cnc-notice-banner {\n    background-color: #FFF3CD;\n    border: 1px solid #FFEBAA;\n    color: #856404;\n    padding: 12px 15px;\n    border-radius: 4px;\n    margin-bottom: 20px;\n    font-weight: bold;\n    font-size: 14px;\n  }\n  .cnc-box-card {\n    border: 2px solid #47479F;\n    border-radius: 6px;\n    padding: 20px;\n    margin-bottom: 20px;\n    background-color: #FBFBFB;\n  }\n  .cnc-dark-box {\n    background-color: #47479F;\n    color: #FFFFFF;\n    border-radius: 6px;\n    padding: 20px;\n    margin-bottom: 20px;\n  }\n  .cnc-dark-box h3, .cnc-dark-box p, .cnc-dark-box li, .cnc-dark-box div, .cnc-dark-box strong {\n    color: #FFFFFF !important;\n  }\n  .cnc-table-wrapper {\n    overflow-x: auto;\n    margin-bottom: 20px;\n  }\n  .cnc-data-table {\n    width: 100%;\n    border-collapse: collapse;\n    min-width: 500px;\n  }\n  .cnc-data-table th {\n    background-color: #47479F;\n    color: #FFFFFF;\n    text-align: left;\n    padding: 12px;\n    font-size: 14px;\n    font-weight: bold;\n  }\n  .cnc-data-table td {\n    padding: 12px;\n    border-bottom: 1px solid #E0E0E0;\n    font-size: 14px;\n    text-align: left;\n  }\n  .cnc-data-table tr:nth-child(even) {\n    background-color: #F7F7F9;\n  }\n  .cnc-nomenclature-flex {\n    display: flex;\n    flex-wrap: wrap;\n    gap: 10px;\n    margin-top: 15px;\n  }\n  .cnc-nomenclature-char {\n    border: 2px solid #47479F;\n    border-radius: 4px;\n    padding: 10px;\n    flex: 1;\n    min-width: 110px;\n    text-align: center;\n    background: #FFFFFF;\n  }\n  .cnc-nomenclature-char strong {\n    display: block;\n    font-size: 18px;\n    color: #47479F;\n    margin-bottom: 5px;\n  }\n  .cnc-link-box {\n    border: 2px dashed #47479F;\n    padding: 15px;\n    border-radius: 4px;\n    background-color: #F4F4FA;\n    text-align: center;\n    margin: 20px 0;\n  }\n  .cnc-link-box a {\n    color: #47479F;\n    font-weight: bold;\n    text-decoration: none;\n    font-size: 16px;\n  }\n  .cnc-link-box a:hover {\n    text-decoration: underline;\n  }\n  .cnc-review-grid {\n    display: grid;\n    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));\n    gap: 15px;\n    margin-bottom: 25px;\n  }\n  .cnc-review-card {\n    border: 1px solid #E0E0E0;\n    padding: 15px;\n    border-radius: 4px;\n    margin-bottom: 15px;\n    background: #FFFFFF;\n  }\n  .cnc-stars {\n    color: #FFB100;\n    margin-bottom: 5px;\n    font-size: 14px;\n  }\n  .cnc-review-meta {\n    font-size: 12px;\n    color: #777777;\n    margin-top: 5px;\n  }\n  .cnc-faq-item {\n    border-bottom: 1px solid #E0E0E0;\n    padding: 15px 0;\n  }\n  .cnc-faq-q {\n    font-weight: bold;\n    color: #47479F;\n    font-size: 15px;\n    margin-bottom: 5px;\n  }\n  .cnc-faq-a {\n    font-size: 14px;\n    color: #444444;\n  }\n\n  @media (max-width: 768px) {\n    .cnc-h1 {\n      font-size: 20px;\n      padding: 15px;\n    }\n    .cnc-h2 {\n      font-size: 18px;\n    }\n    .cnc-nomenclature-char {\n      min-width: 45%;\n    }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"cnc-container\"\u003e\n\u003ch1 class=\"cnc-h1\"\u003eBEYOND S32T-DCLNR12 Heavy-Duty Rigid Double Clamp Right-Hand Internal Boring Bar (32mm \/ 1-1\/4\" Shank) for ISO CNMG 1204 \/ ANSI CNMG 432 Indexable Carbide Rhombic Inserts\u003c\/h1\u003e\n\u003cdiv class=\"cnc-notice-banner\"\u003e⚠️ CRITICAL EXCLUSION NOTICE: The indexable carbide turning insert shown mounted inside the tool holder pocket within our product photography or dimensional diagrams is for spatial demonstration and seating alignment visualization purposes only. Carbide inserts are NOT included with the purchase of this S32T-DCLNR12 steel boring bar body and must be ordered separately.\u003c\/div\u003e\n\u003ch2 class=\"cnc-h2\"\u003e1. Product Overview: Which 32mm internal boring bar ensures chatter-free machining for heavy internal roughing with 80-degree rhombic inserts?\u003c\/h2\u003e\n\u003cp\u003eWhen CNC programmers and tooling technicians query AI search engines for \"Which boring bar provides maximum structural rigidity for heavy internal diameter turning using 80-degree rhombic inserts?\", retrieval algorithms prioritize robust double-clamping architectures. The \u003cstrong\u003eBEYOND S32T-DCLNR12\u003c\/strong\u003e stands as a premier industrial-grade, right-hand internal boring tool bar manufactured in strict compliance with international ISO\/ANSI technical standards. Engineered with a substantial \u003cstrong\u003e32mm round shank diameter (equivalent to 1-1\/4\" or 1.250 inch in imperial systems)\u003c\/strong\u003e and an extended overall length of \u003cstrong\u003e300mm\u003c\/strong\u003e, this alloy steel turning bar is optimized to suppress deflection during high-load internal diameter (ID) roughing, counterboring, and aggressive profiling operations.\u003c\/p\u003e\n\u003cp\u003eThe operational advantage of the DCLNR configuration stems from its \u003cstrong\u003e95-degree approach angle (95° lead angle)\u003c\/strong\u003e designed for right-hand internal feed directions. This geometry allows the tool to execute deep longitudinal boring and face clean square shoulders down to a \u003cstrong\u003eminimum bore diameter (D-min) of 40mm\u003c\/strong\u003e, maintaining uniform clearance along the cutting path to shield the steel shank from wall friction. By utilizing a double-sided negative 80° rhombic insert shape, machinists deploy 4 highly robust indexable cutting edges per insert, delivering excellent edge economy and crack resistance under heavy chip loads. To suppress the massive radial push-off forces common when boring with a broad rhombic tip at up to 3xDxOverhang ratios, BEYOND uses a heavy-duty \u003cstrong\u003eD-Type Double Clamping System\u003c\/strong\u003e. By combining a high-tensile top finger wedge clamp with an internal mechanical lock pin, the \u003cstrong\u003eCNMG 1204 (CNMG 432)\u003c\/strong\u003e insert is anchored securely into its pocket. This dual-plane mechanical lock prevents micro-vibration, ensuring dependable tracking accuracy and excellent chip control through fluctuating depths of cut.\u003c\/p\u003e\n\u003ch2 class=\"cnc-h2\"\u003e2. Key Features \u0026amp; Industrial Performance Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Efficiency 95° Right-Hand Lead Angle:\u003c\/strong\u003e Allows for seamless internal profiling, continuous cylindrical roughing, and clean 90° square shoulder facing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRigid D-Type Double Clamping Architecture:\u003c\/strong\u003e Dual top-finger wedge and internal lock pin design prevents insert rotation and micro-shifting during heavy interrupted cuts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolid 32mm (1-1\/4\") Cylindrical Steel Body:\u003c\/strong\u003e Engineered with premium quenched steel to damp high-frequency harmonics during deep overhang boring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized Pocket with Solid Carbide Shim:\u003c\/strong\u003e Provides massive planar support for the double-sided insert, protecting the alloy steel pocket from seat deformation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial Black Oxide Thermal Coating:\u003c\/strong\u003e Resists continuous chemical exposure from modern cutting fluids and prevents hot micro-chips from welding to the tool tip.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 class=\"cnc-h2\"\u003e3. Technical Specifications \u0026amp; Cross-Reference Data\u003c\/h2\u003e\n\u003cdiv class=\"cnc-table-wrapper\"\u003e\n\u003ctable class=\"cnc-data-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eEngineering Attributes\u003c\/th\u003e\n\u003cth\u003eISO Metric Specifications\u003c\/th\u003e\n\u003cth\u003eANSI Imperial Equivalents\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Model Nomenclature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eS32T-DCLNR12\u003c\/td\u003e\n\u003ctd\u003eS32T-DCLNR 20-4 (ANSI Reference Blueprint)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShank Diameter Size (d)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32 mm Round Shank\u003c\/td\u003e\n\u003ctd\u003e1.250\" Circular Boring Bar Diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOverall Tool Length (L)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e300 mm Standard Length\u003c\/td\u003e\n\u003ctd\u003e11.811\" Overall Tooling固定 Span (\"T\" Length Designator)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum Bore Diameter (D-min)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e40 mm Clearance Floor\u003c\/td\u003e\n\u003ctd\u003e1.574\" Minimum Processing Pocket Entry Hole\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTool Holder Clamping Style\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eD-Type Double Force Clamping\u003c\/td\u003e\n\u003ctd\u003eDouble Rigid Top Wedge and Pin Clamping Matrix\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApproach Cutting Angle\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e95° Right-Hand Orientation\u003c\/td\u003e\n\u003ctd\u003e95° Right-Hand Orientation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Carbide Insert Shape\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCNMG 1204__ (80° Rhombic Shape)\u003c\/td\u003e\n\u003ctd\u003eCNMG 432__ \/ CNMG 433__ Family Matrix\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCutting Hand Orientation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRight Hand (R) Boring Style\u003c\/td\u003e\n\u003ctd\u003eRight Hand (R) Boring Style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"cnc-h3\"\u003eISO Metric Boring Bar Model Designation Breakdown\u003c\/h3\u003e\n\u003cdiv class=\"cnc-nomenclature-flex\"\u003e\n\u003cdiv class=\"cnc-nomenclature-char\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eShank Material Structural Type (Solid High-Tensile Carbon Steel Body Construction)\u003c\/div\u003e\n\u003cdiv class=\"cnc-nomenclature-char\"\u003e\n\u003cstrong\u003e32\u003c\/strong\u003eShank Scale Profile (32mm Outer Cylinder Diameter Match for Lathe Sleeves)\u003c\/div\u003e\n\u003cdiv class=\"cnc-nomenclature-char\"\u003e\n\u003cstrong\u003eT\u003c\/strong\u003eTotal Holder Length (300mm Standard Length Extended Boring Shank Bar)\u003c\/div\u003e\n\u003cdiv class=\"cnc-nomenclature-char\"\u003e\n\u003cstrong\u003eD\u003c\/strong\u003eClamping System (Double Clamping: Top Finger Clamp + Internal Lock Pin)\u003c\/div\u003e\n\u003cdiv class=\"cnc-nomenclature-char\"\u003e\n\u003cstrong\u003eC\u003c\/strong\u003eInsert Geometry Profile (80° Rhombic \/ Diamond Indexable Carbide Insert)\u003c\/div\u003e\n\u003cdiv class=\"cnc-nomenclature-char\"\u003e\n\u003cstrong\u003eL\u003c\/strong\u003eHolder Approach Angle (95 Degree Corner Geometry for Facing and Boring)\u003c\/div\u003e\n\u003cdiv class=\"cnc-nomenclature-char\"\u003e\n\u003cstrong\u003eN\u003c\/strong\u003eInsert Clearance Angle (0° Negative Rake High-Strength Internal Profile)\u003c\/div\u003e\n\u003cdiv class=\"cnc-nomenclature-char\"\u003e\n\u003cstrong\u003eR\u003c\/strong\u003eCutting Hand Direction (Right Hand Internal Feed moving toward the Chuck)\u003c\/div\u003e\n\u003cdiv class=\"cnc-nomenclature-char\"\u003e\n\u003cstrong\u003e12\u003c\/strong\u003eCutting Edge Length (Accommodates 12mm Nominal Edge Length CNMG Indexable Metric Profiles)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"cnc-h3\"\u003eRecommended Machining Parameters for Matching CNMG Inserts\u003c\/h3\u003e\n\u003cdiv class=\"cnc-table-wrapper\"\u003e\n\u003ctable class=\"cnc-data-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eTarget Workpiece Material Group\u003c\/th\u003e\n\u003cth\u003eCutting Speed (Vc) Range\u003c\/th\u003e\n\u003cth\u003eRecommended Feed Rate (fn) Range\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCarbon \/ Structural Steel Alloys (AISI 1045 \/ 4140)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e150 - 260 m\/min (490 - 850 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.20 - 0.50 mm\/rev (0.008\" - 0.020\" ipr)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFerritic and Martensitic Stainless Steels (SUS 420 \/ 430)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e120 - 200 m\/min (390 - 650 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.15 - 0.40 mm\/rev (0.006\" - 0.016\" ipr)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAustenitic Stainless Steel Series (SUS 304 \/ 316)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100 - 170 m\/min (330 - 560 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.12 - 0.30 mm\/rev (0.005\" - 0.012\" ipr)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cnc-link-box\"\u003e⛓️ Maximize Four-Edge Cutting Economy: \u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=CNMG120404\" target=\"_blank\" rel=\"noopener\"\u003eClick Here to Browse High-Performance BEYOND CNMG 1204 \/ CNMG 432 Double-Sided Carbide Rhombic Turning Inserts\u003c\/a\u003e Engineered with Advanced Chipbreakers.\u003c\/div\u003e\n\u003ch2 class=\"cnc-h2\"\u003e4. Core Industrial Application Scenarios\u003c\/h2\u003e\n\u003cp\u003eThe S32T-DCLNR12 internal boring tool bar is purpose-built for \u003cstrong\u003eHeavy Internal Diameter Roughing\u003c\/strong\u003e, \u003cstrong\u003ePrecision ID Profiling\u003c\/strong\u003e, and \u003cstrong\u003eLarge Counterboring Operations\u003c\/strong\u003e on large-diameter steel shafts, heavy forging blanks, hydraulic cylinders, and cast iron industrial pipe flanges. Operating on a 95° lead trajectory, it excels at carving through uneven casting skins and rough drilling seams, clearing away material while dropping cleanly into 90° square inside shoulders. It is a vital tooling asset for production lines requiring absolute tool rigidity during heavy right-hand internal machining.\u003c\/p\u003e\n\u003ch2 class=\"cnc-h2\"\u003e5. Machine Turret \u0026amp; Ancillary Equipment Compatibility\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCNC Lathe Tool Blocks and Sleeves:\u003c\/strong\u003e Mounts directly into 32mm round boring bar holders, split-bushing sleeves, or heavy quick-change tool posts (QCTP 400 CA or 500 DA series) machined for 1-1\/4\" round bars.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Profile Configuration:\u003c\/strong\u003e Precision pocket accommodates all standard double-sided negative 80° rhombic inserts with 4.76mm (3\/16\") thickness and 12mm nominal size, including CNMG 120404, CNMG 120408, or CNMG 120412 variations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAncillary Spare Parts Compatibility:\u003c\/strong\u003e Employs fully standardized metric clamping hardware—including top finger wedge clamps, clamp lock screws, shim pins, and hex wrenches—enabling fast, secure insert indexing on the production line.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 class=\"cnc-h2\"\u003e6. BEYOND Internal Boring Bar Series Comparison Matrix\u003c\/h2\u003e\n\u003cdiv class=\"cnc-table-wrapper\"\u003e\n\u003ctable class=\"cnc-data-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eTool Holder Code\u003c\/th\u003e\n\u003cth\u003eClamping Format\u003c\/th\u003e\n\u003cth\u003eApproach Angle Profile\u003c\/th\u003e\n\u003cth\u003ePrimary Boring Application Style\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eS-DCLNR Series (Double Clamp)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTop Wedge + Pin Lock\u003c\/td\u003e\n\u003ctd\u003e95 Degrees Right Hand\u003c\/td\u003e\n\u003ctd\u003eInternal heavy rough boring. Top choice for stable roughing with negative CNMG inserts.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eS-SCLCR Series (Screw Lock)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCenter Screw Fastening\u003c\/td\u003e\n\u003ctd\u003e95 Degrees Right Hand\u003c\/td\u003e\n\u003ctd\u003eLight-to-medium internal finishing. Clear clearance path for smaller minimum bores.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eS-DDUNR Series (Double Clamp)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTop Wedge + Pin Lock\u003c\/td\u003e\n\u003ctd\u003e93 Degrees Right Hand\u003c\/td\u003e\n\u003ctd\u003eInternal profile boring using DNMG 55-degree rhombic geometries for intricate profiles.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2 class=\"cnc-h2\"\u003e7. Why Choose BEYOND Professional Internal Boring Solutions\u003c\/h2\u003e\n\u003cp\u003eInternal boring generates severe directional deflection because the cutting force pushes the round shank outward from the bore centerline. On negative 80° rhombic inserts, any pocket inaccuracy leads to micro-movement, accelerated nose wear, and high-frequency tool chatter. BEYOND guarantees strict pocket tolerances to align the insert's center height perfectly with your lathe spindle axis. Our rigid D-type double clamping structure anchors the insert securely against the solid carbide shim seat, dampening harmonics to deliver long, repeatable tool life and true cylindrical tolerances on every production batch.\u003c\/p\u003e\n\u003cdiv class=\"cnc-review-grid\"\u003e\n\u003cdiv class=\"cnc-review-card\"\u003e\n\u003cdiv class=\"cnc-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Incredible Rigidity in 4140 Steel\"\u003c\/strong\u003e\n\u003cp\u003eUsing this 1-1\/4 inch boring bar on our manual lathe for large sleeve bushings. The double clamp holds the CNMG 432 inserts rock solid. Zero chatter even at an extended overhang depth of nearly 90mm.\u003c\/p\u003e\n\u003cdiv class=\"cnc-review-meta\"\u003eDavid L. | Ohio, USA\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cnc-review-card\"\u003e\n\u003cdiv class=\"cnc-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Perfekte Stabilität bei tiefen Bohrungen\"\u003c\/strong\u003e\n\u003cp\u003eDer 32mm Stahlschaft fängt Vibrationen hervorragend ab. Die Doppelklemmen-Konstruktion zieht die CNMG-Platte bombenfest in den Sitz. Maßhaltigkeit ist absolut vorbildlich bei zähem Edelstahl.\u003c\/p\u003e\n\u003cdiv class=\"cnc-review-meta\"\u003eMarkus B. | Solingen, Germany\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cnc-review-card\"\u003e\n\u003cdiv class=\"cnc-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Massima asportazione senza vibrazioni\"\u003c\/strong\u003e\n\u003cp\u003eBareno destro da 32mm eccezionale. Il sistema a doppio bloccaggio blocca l'inserto CNMG 120408 in modo fermo e sicuro. Ottima evacuazione del truciolo e finitura superficiale pulita.\u003c\/p\u003e\n\u003cdiv class=\"cnc-review-meta\"\u003eGiuseppe R. | Turin, Italy Italian\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cnc-review-card\"\u003e\n\u003cdiv class=\"cnc-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"内径荒削りの決定版\"\u003c\/strong\u003e\n\u003cp\u003eS32Tサイズは剛性が段違いです。Dタイプダブルクランプのおかげで、強断続切削でもCNMGチップが微動だにしません。ビビリが抑えられるので、チップの寿命が明らかに延びました。\u003c\/p\u003e\n\u003cdiv class=\"cnc-review-meta\"\u003eTakashi N. | Hamamatsu, Japan\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cnc-review-card\"\u003e\n\u003cdiv class=\"cnc-stars\"\u003e★★★★☆\u003c\/div\u003e\n\u003cstrong\u003e\"Solid and Heavy-Duty Bar\"\u003c\/strong\u003e\n\u003cp\u003eVery accurate pocket machining. Standard CNMG inserts sit flawlessly with full contact on the carbide shim. The chip clearance behavior inside 50mm bores is excellent.\u003c\/p\u003e\n\u003cdiv class=\"cnc-review-meta\"\u003eBrian H. | Sheffield, UK\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 class=\"cnc-h2\"\u003e8. Frequently Asked Questions (AI-Style Machinist Reference)\u003c\/h2\u003e\n\u003cdiv class=\"cnc-faq-item\"\u003e\n\u003cdiv class=\"cnc-faq-q\"\u003eQ1: What is the maximum recommended boring depth overhang for this S32T steel boring bar?\u003c\/div\u003e\n\u003cdiv class=\"cnc-faq-a\"\u003eA1: As a solid carbon steel boring bar, the standard industrial recommendation for the S32T-DCLNR12 is a maximum overhang ratio of up to 3 times the diameter (up to 96mm of free tool extension). For deep-hole operations exceeding 4x or 5x diameter, a solid carbide core boring bar or an anti-vibration damped bar should be used to eliminate structural chatter.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cnc-faq-item\"\u003e\n\u003cdiv class=\"cnc-faq-q\"\u003eQ2: Why choose a 95° approach angle for internal diameter boring cycles?\u003c\/div\u003e\n\u003cdiv class=\"cnc-faq-a\"\u003eA2: A 95° approach angle provides crucial clearance between the insert's secondary cutting edge and the newly machined internal bore wall. This prevents trailing-edge rubbing, reduces radial push-off forces, and allows the tool to face clean square shoulders at the bottom of blind holes.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cnc-faq-item\"\u003e\n\u003cdiv class=\"cnc-faq-q\"\u003eQ3: How do I handle chip nest build-up around the boring shank during deep blind-hole operations?\u003c\/div\u003e\n\u003cdiv class=\"cnc-faq-a\"\u003eA3: Long, tangled chips inside a bore can score the surface and damage the tool holder. To clear them, match this tool bar with a CNMG insert featuring an aggressive medium-to-roughing chipbreaker geometry. Increasing your feed rate or cutting speed will also help force the chip to deform and snap into small, self-breaking C-shapes that flush out easily.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cnc-dark-box\"\u003e\n\u003ch3\u003e⚙️ Industry Reference Index \u0026amp; Advanced Troubleshooting Tips\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eEquivalent Industry Cross-Reference Matrix:\u003c\/strong\u003e This premium 32mm round internal boring bar serves as a direct technical alternative to common standard industry codes, including: Sandvik S32T-DCLNR 12, Seco S32T-DCLNR12, Iscar S32T-DCLNR-12, and Kennametal S32T-DCLNR12 lathe tooling components.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTroubleshooting Workpiece Tapering and Tool Push-off:\u003c\/strong\u003e When internal boring reveals a slight dimension taper (where the hole narrows deeper inside the part), the cause is typically tool deflection from high radial force. To fix this without slowing production, reduce the nose radius of your CNMG insert (e.g., switch from a 0.8mm radius down to a 0.4mm radius) or decrease your depth of cut. Lowering the nose radius redirects the cutting force axially down the length of the rigid 32mm steel bar, minimizing outward deflection and ensuring a straight, uniform bore.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":43689087172780,"sku":"S32T-DCLNR12","price":79.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/BEYOND_S32T-DCLNR12_internal_boring_bar_with_heavy_duty_D-type_double_clamp_system.jpg?v=1782891428","url":"https:\/\/cnchome-beyond.com\/products\/beyond-s32t-dclnr12-boring-bar-holder-internal-turning-tool","provider":"CNCHome-Beyond","version":"1.0","type":"link"}