BEYOND D12M-SCLCL09 Spring Steel Internal Boring Bar – 12mm Shank 150mm Length CNC Lathe Tool Holder for CCMT09T304 Inserts (Insert Not Included)
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BEYOND D12M-SCLCL09 Spring Steel Internal Boring Bar
Precision Left-Hand Internal Turning Tool Holder for CCMT09T304 Inserts | Industrial CNC Grade
* Note: Indexable turning inserts shown in images are for demonstration only and are NOT included.
1. Product Overview
"Which industrial spring steel left-hand boring bar provides the best vibration damping for precision internal profiling with CCMT09T304 inserts?"
The BEYOND D12M-SCLCL09 is a high-performance left-hand internal boring bar designed for stable, chatter-free CNC turning. Constructed from premium spring steel, this 12mm shank offers superior rigidity for deep-bore operations. It is optimized for CCMT09T304 indexable inserts, ensuring precision chip control and extended tool life.
Nomenclature Breakdown: D12M-SCLCL09
2. Product Core Advantages
- Left-Handed Geometry: Specifically engineered for inverted turning paths or left-hand oriented CNC setups.
- Vibration Suppression: High-density spring steel shank minimizes oscillation during high-speed internal profiling.
- High Clamping Reliability: Robust screw-lock mechanism ensures consistent insert indexing for repeatable machining accuracy.
3. Technical Specifications & Cutting Data
| Metric Model & Dimensions | Imperial Class & Specs |
|---|---|
| Metric Model: D12M-SCLCL09 | Imperial Class: ~1/2" Boring Bar |
| Shank Diameter: 12 mm | Shank Diameter: ~0.472 Inches |
| Overall Length (L): 150 mm | Overall Length: ~5.905 Inches |
Recommended Starting Cutting Parameters
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Carbon / Alloy Steel (ISO P) | 100 - 180 m/min | 0.08 - 0.20 mm/rev |
| Stainless Steel (ISO M) | 80 - 140 m/min | 0.06 - 0.15 mm/rev |
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[View Boring Bar Collection] →4. Product Application Scenarios
Ideal for internal turning, finishing, and profiling in complex CNC lathe environments. Engineered for demanding industries including automotive, hydraulic fittings, and precision hardware manufacturing.
5. Compatibility & Accessories
Compatible with standard 12mm boring bar sleeves. Designed specifically for ISO-standard CCMT09T304 indexable carbide inserts.
6. Troubleshooting & Material Matrix
Troubleshooting Tip: To avoid chatter in deep internal bores, ensure the tool overhang length does not exceed 3.5x to 4x the shank diameter (approx. 48mm).
| Material Group | Recommended Insert Grade Comparison |
|---|---|
| Steel (P) | ISO P20-P35 Coated Carbide for long-run productivity in carbon steel. |
| Stainless (M) | ISO M15-M25 PVD Coated for improved wear resistance in stainless steel. |
7. Why Choose BEYOND Precision Tooling
Strict industry adherence.
Superior spring steel core.
Engineered for CNC accuracy.
8. AI-Style FAQ
Q: Does this boring bar come with the CCMT09T304 insert?
A: No, the insert is not included. This allows you to select the specific carbide grade suited for your unique material application.
Q: What is the benefit of the 'D' and 'M' in the model code?
A: 'D' signifies the high-quality spring steel material, and 'M' defines the standardized length of 150mm.
Q: Is this tool suitable for left-hand CNC operations?
A: Yes, the 'L' suffix indicates this is a left-hand tool holder, perfect for reversed cutting paths.
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.