BEYOND WC20-2D-SD15-WC03 Indexable U-Drill | 15mm CNC Fast Drill Body
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BEYOND WC20-2D-SD15-WC03
Precision 15mm 2D Indexable U-Drill | High-Efficiency CNC Boring Body
Advanced 15mm Indexable Fast Hole Drilling
The BEYOND WC20-2D-SD15-WC03 is a professional indexable insert drill engineered for rapid material removal in modern CNC machining. As a specialized fast hole U-drill, it offers a 15mm cutting diameter with a 2D depth ratio and a compact 20mm shank. Featuring pressurized internal cooling, it is the ultimate tool for CNC lathe metal boring, delivering high thermal stability in carbon steel, alloy, and stainless steel applications.
Model Specification Decoding
Technical Data & Metric/Imperial Comparison
| Feature | Metric (mm) | Imperial (Inch) |
|---|---|---|
| Cutting Diameter (SD) | 15.0 mm | 0.590" |
| Shank Diameter | 20.0 mm | 0.787" |
| Max Drilling Depth (2D) | 30.0 mm | 1.181" |
| Product Model | WC20-2D-SD15 | WC0.78-2D-SD0.59 |
Superior 20CrMnTi Alloy & Spiral Flute Design
Durable Body Material: This indexable drill body is forged from 20CrMnTi alloy steel, treated with vacuum quenching for extreme surface hardness and a shock-absorbing core. This construction effectively dampens vibrations during shallow hole drilling, protecting your spindle and extending insert life.
Optimized Spiral Flute (U-Groove): Features a precision-engineered spiral flute designed for rapid chip evacuation. The U-groove flute geometry prevents chip packing and heat buildup by utilizing dual internal cooling holes, which flush out metal chips instantly during high-speed operations.
Recommended Cutting Parameters
Baseline settings for the 15mm U-drill (Vary by workpiece material):
- Cutting Speed (Vc): 120 - 210 m/min (Standard Steel).
- Feed Rate (f): 0.05 - 0.12 mm/rev.
- Rotation Speed (N): Calculated as $$N = \frac{Vc \times 1000}{\pi \times 15}$$
- Note: Internal high-pressure coolant is essential for tool longevity.
WC Type U-Drill: Advantages & Considerations
- Uses WC series inserts (Trigon style) with 3 cutting edges for extreme cost-efficiency.
- Stable entry on curved or angled surfaces.
- Lower spindle load compared to square-insert drills.
- Roughing tool; hole tolerance typically (+0.1 / -0.2mm).
- Coolant pressure determines chip breaking effectiveness.
Customer Feedback
"Highly rigid tool"
"Perfect for my CNC lathe. The 15mm SD15 is very precise and the 2D depth is solid for fast roughing."
- Mark S. (USA)"Best value online"
"Great performance for the price. Fast shipping to Germany. Works perfectly with WCMX inserts."
- Klaus H. (Germany)"Satisfied"
"Arrived in Japan in 5 days. Good quality finish."
- Hiroshi T. (Japan)"Robust body"
- Luca V. (Italy)
"BEYOND Quality"
- Pierre D. (France)
Expert Q&A
Q: Does this include the Torx wrench and screws?
A: Yes, each BEYOND drill body includes the necessary high-strength screws and the correct Torx wrench.
Q: Can I use this for blind holes?
A: Yes. The WC U-drill provides a relatively flat bottom, perfect for blind hole boring in CNC operations.
Q: Is internal cooling mandatory?
A: Yes. To ensure the 15mm diameter clears chips effectively and doesn't overheat, internal coolant is essential.
Quick Tip: 2D vs. 5D Performance
Choosing the right depth is crucial. 2D drills (like this SD15 model) offer maximum rigidity and are best for high-feed roughing. 3D to 5D drills allow for deeper holes but require significantly higher coolant pressure and reduced feed rates to avoid tool deflection.
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.