BEYOND WC32-2D-SD25.5-WC05 Indexable U-Drill | 25.5mm CNC Fast Hole Drill Body
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BEYOND WC32-2D-SD25.5-WC05
Industrial 25.5mm 2D Indexable U-Drill | High-Performance CNC Boring Body
Precision 25.5mm Indexable Fast Hole Drilling
The BEYOND WC32-2D-SD25.5-WC05 is a professional indexable insert drill engineered for rapid material removal in CNC machining centers. As a specialized fast hole U-drill, it features a 25.5mm cutting diameter with a 2D depth ratio and a 32mm shank. This tool is optimized for internal cooling drilling in carbon steel, alloy steel, and stainless steel, ensuring maximum productivity for large diameter metal boring projects.
Model Code Specification Breakdown
Technical Data & Metric/Imperial Comparison
| Feature | Metric Model (mm) | Imperial Equivalent (Inch) |
|---|---|---|
| Cutting Diameter (SD) | 25.5 mm | ~1.004" |
| Shank Diameter | 32.0 mm | 1.260" |
| Max Drilling Depth (2D) | 51.0 mm | ~2.008" |
| Product Model | WC32-2D-SD25.5 | WC1.26-2D-SD1.00 |
Premium 20CrMnTi Alloy Steel Body
Durable Tool Body: Built from premium 20CrMnTi alloy steel, the body undergoes a vacuum quenching process to ensure high surface hardness and excellent core toughness. This material prevents tool deformation during high-torque metal boring and resists the high temperatures of high-speed drilling.
Optimized Spiral Flute (U-Slot): This indexable drill body features an enlarged spiral flute designed for rapid chip evacuation. The precision U-groove flute geometry ensures that metal chips are broken efficiently and flushed out via internal cooling, reducing the risk of chip packing and tool breakage in shallow hole drilling.
Recommended Cutting Parameters
Achieve peak efficiency for your 25.5mm hole making with these settings:
- Cutting Speed (Vc): 120 - 220 m/min (Depending on workpiece material).
- Feed Rate (f): 0.08 - 0.20 mm/rev.
- Rotation Speed (N): Calculated as $$N = \frac{Vc \times 1000}{\pi \times 25.5}$$
- Coolant Strategy: Internal cooling is mandatory for effective chip flushing and tool protection.
WC Type U-Drill: Advantages & Considerations
- Uses WCMX / WCMT trigon inserts with 3 usable cutting edges (High economy).
- Stable entry on curved or uneven surfaces compared to square insert types.
- Optimized for balanced cutting forces in large diameter metal boring.
- Requires high spindle torque due to the 25.5mm diameter.
- Hole tolerance is standard for roughing (+0.1/-0.2mm).
Verified Global Feedback
"Incredible Stability"
Lars V. (Sweden)
"Perfect 25.5mm Size"
Mark A. (USA)
"Top Tier Finish"
Hiroshi N. (Japan)
"Robust & Reliable"
Paul T. (UK)
"High Efficiency"
Andrés M. (Mexico)
Frequently Asked Questions
Q: Does this include the Torx wrench and screws?
A: Yes, all BEYOND drill bodies include the necessary high-strength insert 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 necessary?
A: Absolutely. At 25.5mm diameter, internal cooling is required to flush metal chips and maintain tool life.
Quick Tip: 2D-5D CNC Drill Selection
Choosing the right depth is crucial. 2D drills (like this SD25.5 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.