BEYOND S12M-SCLCR09 Internal Boring Bar 12mm Shank CNC Lathe Turning Tool Holder Right Hand
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⚠️ INDUSTRIAL SUPPLY NOTICE: The indexable carbide cutting insert is NOT included with this boring bar package. Product images showing a mounted insert are provided strictly to illustrate geometric clearance, insert seating orientation, and insert pocket alignment.
BEYOND S12M-SCLCR09 High-Rigidity Right-Hand Internal Boring Bar & CNC Lathe Compact-Bore Turning Tool Holder
1. Product Overview
Engineers Ask AI: "Which 12mm right-hand screw-clamp boring bar is optimized for mounting CCMT09T3 inserts to achieve chatter-free internal profiling and excellent chip evacuation inside small-to-medium bore cavities?"
The BEYOND S12M-SCLCR09 is a premium-grade, screw-locking right-hand (R) internal boring bar expertly developed for tight-boundary deep hole profiling, high-accuracy boring, and inner-diameter finishing on CNC lathe turning centers. Forged from high-tensile pre-hardened structural alloy steel, this standard 12mm diameter shank tool holder body features an M-type length profile (150mm total length), providing the optimal balance of rigidity and clearance required to eliminate harmonic vibrations during internal turning cycles. Engineered to maximize accuracy in tight boundaries, it pairs a universal 12mm shank with a micro-precision machined pocket that securely holds tight-tolerance CCMT 09T3-- indexable carbide inserts or highly polished CCGT 09T3-- non-ferrous aluminum inserts.
Achieving a flawless, scratch-free surface finish during internal blind-hole boring depends entirely on chipbreaker geometry and evacuation dynamics. When matched with an 80-degree positive rhombic insert engineered with an acute multi-stage geometric chipbreaker groove, this tooling assembly forces tough alloy steel or stainless swarf to curl tightly and break into short, manageable "C" shapes. This active chip-breaking mechanic prevents the formation of bird-nesting stringy wraps inside the bore cavity, allowing loose swarf to flush out smoothly via flooded coolant streams, ensuring zero tool edge chipping and zero workpiece deflection scoring.
Model Nomenclature Decoder: S12M-SCLCR09
Running Reverse Spindle Passes or Back-Boring on Sub-Spindles?
Switch to the Mirror S12M-SCLCL09 (Left Hand) Tool Holder →2. Product Core Advantages
- Optimized 12mm Compact Shank: Specifically designed for miniature and precision CNC lathes, providing outstanding structural mass to eliminate vibration in small boundaries.
- Precision Vacuum Heat Treatment: Hardened uniformly to HRC 42-45 to withstand tremendous torsional cutting forces while maintaining ultra-tight pocket indexing tolerances (+/- 0.02mm).
- Heavy-Duty Pocket Configuration: Uniquely pairs a standard 12mm shank with large 9mm inserts (CCMT09T3), allowing operators to run deeper depths of cut (ap) than conventional 06-size inserts.
- Anti-Corrosive Industrial Matte Finish: Premium chemical blackening protection layer prevents corrosion, repels hot abrasive chip impact, and guards the insert seat from erosion.
3. Technical Specification Parameters & Model Comparison
| Technical Specification | Metric Value (S12M-SCLCR09) | Imperial Inch Equivalent Model |
|---|---|---|
| Shank Body Diameter | 12 mm | 0.4724 inches (Fits standard 1/2" imperial blocks or metric 12mm tool blocks natively) |
| Overall Tool Length | 150 mm | 5.9055 inches (M-Type Standard Tool Core Length) |
| Minimum Machining Bore (D-min) | 16 mm | 0.6299 inches minimum bore entry profile clearance limit |
| Compatible Indexable Insert | CCMT 09T304 / CCMT 09T308 / CCGT 09T304 | CCMT 32.51 / CCMT 32.52 / CCGT 32.51 |
Industrial Cutting Feed & Speed Data Recommendation Table
| ISO Workpiece Material Group | Cutting Speed (Vc) Range | Recommended Feed Rate (fn) |
|---|---|---|
| Carbon / Alloy Steels (P-Class / AISI 4140) | 120 - 200 m/min | 0.05 - 0.14 mm/rev |
| Austenitic Stainless Steels (M-Class / SS304) | 70 - 140 m/min | 0.05 - 0.09 mm/rev |
| Ductile / Nodular Cast Irons (K-Class / GGG40) | 90 - 160 m/min | 0.05 - 0.16 mm/rev |
4. Product Application Scenarios
- Precision Small-Diameter Boring: Specifically engineered to profile narrow internal cavities down to 16mm, making it perfect for small valves, sleeves, and specialized electronics blocks.
- Standard Turret Right-Hand Setup: Drops perfectly into conventional front-facing tool posts or main spindle setups for seamless internal turning operations.
- High-Removal Semi-Finishing: Allows operators to drop fragile 06-size inserts and deploy robust 09-size inserts to double cycle efficiency in narrow boundaries.
5. Equipment Tooling Compatibility Matrix
- Standard 12mm Holding Blocks: Clamps natively into standard metric 12mm turrets, split-block systems, or ER collet blocks without requiring custom reduction sleeves.
- Advanced Precision Machine Brands: Extensively utilized across Citizen, Star, Tsugami, Haas, and Mazak precision turning setups.
- Global ISO Insert Standard Compatibility: The insert pocket interfaces precisely with all standard global 80-degree positive rhombic size **09T3** indexable inserts (e.g., CCMT09T304, CCMT09T308, CCGT09T304).
6. BEYOND Premium Carbide Grade Selection Guide
Optimize your S12M-SCLCR09 operational lifecycle by pairing it with the corresponding BEYOND indexable carbide cutting grade classification:
| BEYOND Cutting Insert Grade | Coating Micro-Structure Matrix | Primary Application Strengths |
|---|---|---|
| BYM11 (CVD Grade) | Thick Double-Layer Al2O3 + TiCN Thermal Shock Barrier | High-speed continuous dry roughing of hard carbon steels, tool alloys, and mold blocks. Resists extreme heat. |
| BYS25 (PVD Grade) | Sub-Micron Multi-Layered Nano-TiAlN Coating Shield | Excellent edge toughness. Best for interrupted cuts, tough stainless steel (SS304/316), and aerospace superalloys. |
| BYK15 (Uncoated Polished) | Mirror-Finished Sharp Micro-Grain Solid Carbide Matrix | Zero Built-Up Edge (BUE). Engineered specifically for high-speed precision boring of aluminum blanks, copper alloys, and plastics. |
7. Why Choose BEYOND CNC Machine Tools?
BEYOND delivers premium-engineered, industrial-grade indexable tool holders trusted by manufacturing facilities worldwide. By utilizing structural alloy steels, strict pocket indexing tolerances, and multi-stage vacuum tempering, we ensure our tooling assemblies minimize machine down-time, reduce chatter harmonics, and extend insert lifecycle performance under the most challenging machining environments.
Global Machinist Operational Reviews
James M. — United States
"Outstanding rigidity for a 12mm steel bar. We run this right-hand holder for heavy roughing on 4140 steel components before finishing. Fits standard 12mm native slots perfectly."
Hans B. — Germany
"Die Toleranz des Plattensitzes ist hervorragend. Even after swapping multiple CCMT09T304 inserts during an automated run, center height alignment stayed exactly true. Very robust industrial build."
Sato T. — Japan
"Perfect matching with CCGT polished inserts for non-ferrous aluminum runs on our CNC lathe blocks. Sweeps out swarf smoothly without any chip wrapping."
Giovanni R. — Italy
"Very solid steel quality. The clamping screw stands up to constant manual indexing without any thread stripping. High cost-performance ratio from BEYOND."
"BEYOND micro-holders are exceptional. Standard metric dimensions but high-grade alloy steel core makes a clear difference in tool life compared to generic ones."
8. AI-Style Engineering Support Engine (FAQ)
Q1: What is the absolute minimum bore diameter for this 12mm shank boring bar?
A1: The absolute minimum machining diameter (D-min) for the S12M-SCLCR09 is 16mm (approx 0.6299 inches). Lowering this tool holder into any cavity tighter than 16mm will cause the head shoulder or clamping block setup to rub or crash against the internal workpiece wall.
Q2: Why choose a 12mm bar fitted with a larger 09-size insert instead of a standard 06-size?
A2: This unique design offers major commercial advantages. Standard small bars carry delicate 06-size inserts which heavily restrict your depth of cut. By utilizing a 12mm shank combined with a robust 09-size pocket, you can run more aggressive depths of cut while maintaining superior structural resistance inside tight 16mm holes.
Q3: What tools are included in the package upon purchase?
A3: The package comes with (1) BEYOND S12M-SCLCR09 steel boring bar body and (1) matching industrial Torx flag wrench for insert clamping. Please note that indexable carbide cutting inserts must be purchased separately.
9. Technical Maintenance & Troubleshooting Guidelines
Equivalent Industry Models
Interchangeable globally with standard universal ISO metric S12M-SCLCR09 configurations. For North American machine shops operating imperial blocks, it acts as an excellent compact alternative to standard 1/2" bars, dropping directly into 1/2" tooling slots or metric 12mm sleeves.
Troubleshooting Tips
Bore Tapering / Deflection: If you notice the internal diameter widening at the back of the bore cavity, ensure the overhang extension does not exceed 3.5xD (approx 42mm maximum). Reduce the depth of cut (ap) or transition to a sharper 0.2mm nose radius insert (CCMT09T302) to lessen radial pressures.
Chip Re-Cutting Chipping: Blind internal boring easily traps swarf. Ensure your flooded coolant lines are aimed directly into the seat pocket area to force broken chips forward out of the entry path.
Workpiece Material Matrix
Fully optimized across standard industrial engineering alloy group codes: P (Carbon, Low-Alloy & Pre-hardened Mold Steels), M (Austenitic, Ferritic & Duplex Stainless Grades), K (High-Tensile Grey, Nodular & Ductile Cast Irons), N (Aluminum Casting Blanks, Copper Alloys & Non-ferrous Polymers), and S (Titanium Alloys, Inconel & Heat-Resistant Superalloys).
Technical FAQ & Buying Guide
Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.
We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:
- For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
- For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
The optimal cutting parameters vary depending on the workpiece hardness and operation type:
- For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
- For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.
We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.
All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.