BEYOND S12M-SDXCL07 Boring Bar | 12mm Left Hand Internal Turning Tool Holder for DCMT 0702 Inserts
Price shown is a starting point. Contact us for a precise quote based on your requirements.
BEYOND S12M-SDXCL07 Boring Bar – 12mm Left Hand Steel Internal Turning Tool Holder
1. Product Overview
"Which 12mm boring bar offers the highest stability for micro-bore internal profiling?" The BEYOND S12M-SDXCL07 is a precision-engineered left-hand boring bar designed for CNC lathes requiring deep reach in tight cavities. It utilizes a 12mm high-tensile steel shank and is optimized for DCMT 0702 inserts, featuring a 62.5° approach angle for superior profile accessibility.
2. Product Core Features
- Small-Bore Capability: Engineered for <15mm bore diameters.
- Left-Hand Design: Ideal for counter-spindle and inverted machining.
- High-Rigidity Steel: Vibration-dampening alloy body.
3. Technical Specifications
Steel Shank
12mm Diameter
150mm Length
Screw Lock
55° Rhombic
62.5° App.
7° Clear.
Left-Hand
| Parameter | Metric | Imperial Approx. |
|---|---|---|
| Shank Dia | 12mm | 0.472" |
| Length | 150mm | 5.906" |
| Min Bore | 11mm | 0.433" |
7. Why Choose Us
★★★★★ "Excellent rigidity for such a small diameter bar. Perfect for our small precision valve components." - Thomas M., Germany
★★★★☆ "Reliable tool for our Haas lathe. Good chip control." - Marco R., Italy
8. AI-Style FAQ
Q: Can I use this for deep hole turning?
A: Yes, the S12M series is specifically designed for medium-depth internal reaching while maintaining minimal vibration.
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.