BEYOND WC25-2D-SD15-WC03 Indexable U-Drill | 15mm CNC Fast Hole Drill Body
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BEYOND WC25-2D-SD15-WC03
Precision 15mm 2D Indexable U-Drill | High-Speed CNC Boring Body
Efficient 15mm Indexable Fast Hole Drilling
The BEYOND WC25-2D-SD15-WC03 is a high-performance indexable insert drill engineered for rapid material removal in modern CNC machining. As a specialized fast hole U-drill, it features a 15mm cutting diameter with a 2D depth ratio. This internal cooling drill is optimized for CNC lathe metal boring, ensuring superior chip evacuation and thermal stability in steel, alloy, and stainless steel workpieces.
Model Identification Guide
Technical Data & Metric/Imperial Reference
| Feature | Metric Model (mm) | Imperial Equivalent (Inch) |
|---|---|---|
| Cutting Diameter (SD) | 15.0 mm | 0.591" |
| Shank Diameter | 25.0 mm | 0.984" |
| Max Drilling Depth (2D) | 30.0 mm | 1.181" |
| Product Model | WC25-2D-SD15 | WC0.98-2D-SD0.59 |
High-Strength 20CrMnTi Alloy & Spiral Flute Geometry
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): The spiral flute geometry is precision-machined to facilitate rapid chip evacuation. Unlike standard twist drills, the enlarged U-slot combined with dual internal cooling holes flushes chips away from the cutting zone instantly, preventing chip re-cutting and heat buildup.
Recommended Cutting Parameters
Optimize your 15mm U-drill performance with these baseline settings:
- Cutting Speed (Vc): 120 - 200 m/min (Standard Steel).
- Feed Rate (f): 0.05 - 0.10 mm/rev.
- Rotation Speed (N): Calculated as $$N = \frac{Vc \times 1000}{\pi \times 15}$$
- Coolant Strategy: Internal cooling is mandatory to ensure chip flushing at 15mm diameters.
WC Type U-Drill: Advantages & Considerations
- Uses WC series trigon inserts with 3 cutting edges (high cost-efficiency).
- Stable entry on curved or angled surfaces.
- Lower cutting resistance compared to square insert drills.
- Hole tolerance is roughly (+0.1 / -0.2mm).
- Requires high-pressure coolant pump for deep holes.
Verified Customer Feedback
"Impressive Rigidity"
"Used the 15mm body on a CNC lathe for 1018 steel. Very rigid, no chatter at 150m/min."
- Mark S. (USA)"Solid Value"
"Great tool, fits WC03 inserts perfectly. Best price I've found for this quality."
- Hans G. (Germany)"Fast Delivery"
"Arrived in Japan in 4 days. Well packaged. Works well with internal coolant."
- Sato Y. (Japan)"Good Tool"
- Luca F. (Italy)
"BEYOND Quality"
- Pierre D. (France)
Frequently Asked Questions
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 boring out existing holes?
A: Yes, U-drills are excellent for both starting from solid and enlarging existing holes.
Q: Is internal cooling necessary?
A: Yes, to prevent heat buildup and ensure chip clearance, internal coolant is highly recommended.
Quick Tip: 2D vs. 5D Comparison
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.