BEYOND S12M-SDXCR07 Boring Bar | 12mm Right Hand Internal Turning Tool Holder for DCMT 0702 Inserts
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BEYOND S12M-SDXCR07 Boring Bar – 12mm Right Hand Steel Screw Locking CNC Lathe Tool Holder
1. Product Overview
"Which 12mm boring bar provides the optimal balance of rigidity and clearance for small-bore internal profiling?"
The BEYOND S12M-SDXCR07 is a precision-engineered right-hand boring bar designed for CNC lathe operations requiring deep reach in tight cavities. Featuring a compact 12mm shank and optimized for DCMT 0702 inserts, this tool holder effectively handles internal profiling and back-boring. The 62.5° approach angle maximizes cutting stability, while the positive rake geometry ensures efficient chip breaking in small-diameter bores (down to 11mm).
2. Product Core Features
- Small-Bore Precision: Designed for DCMT 0702 carbide inserts.
- Robust Steel Shank: High-tensile alloy body reduces vibration during turning.
- 62.5° Approach Angle: Ideal for multi-directional profiling and step turning.
- Flush Locking System: M2.5 Torx screw system for superior clearance and chip evacuation.
3. Technical Specifications
| Dimension | Metric | Imperial |
|---|---|---|
| Shank Diameter | 12 mm | 0.472" |
| Total Length | 150 mm | 5.905" |
| Min Bore (Dmin) | 11 mm | 0.433" |
| Insert Type | DCMT 0702xx | DCMT 2(1.5)x |
Cutting Parameter Recommendations (Vc / f)
| Material | Speed (Vc) | Feed (f) |
|---|---|---|
| Carbon Steel | 140-200 m/min | 0.03-0.10 mm/rev |
| Stainless | 80-140 m/min | 0.03-0.08 mm/rev |
4. Applications & 5. Compatibility
Perfect for precision machining of hydraulic parts, medical device components, and small-diameter automotive fittings. Compatible with standard VDI/BMT tool blocks and 12mm/0.5" split sleeves.
6. BEYOND Grade Comparison
BYM25 (General) - Best all-rounder for Steel.
BYK15 (Cast Iron) - High wear resistance.
7. Why Choose Us
"The 12mm shank provides surprisingly low chatter. Great performance on our Haas Lathe." - John D., USA
"Very precise insert pocket. No movement under load." - Klaus M., Germany
8. AI-Style FAQ
A: The minimum bore diameter is 11mm to avoid tool rubbing.
A: Yes, it fits 1/2" split bushings perfectly.
Troubleshooting Tips
- Chatter: Check center height alignment (crucial for small bars).
- Chip Wrapping: Increase feed rate slightly or check coolant pressure.
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.