BEYOND WC25-4D-SD24.5-WC04 U-Drill | 24.5mm Indexable Insert Drill (4D Depth)
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BEYOND WC25-4D-SD24.5-WC04
Industrial 4D Indexable U-Drill | 24.5mm Precision CNC Machining
High-Efficiency 24.5mm Indexable Drilling
The BEYOND WC25-4D-SD24.5-WC04 is a high-rigidity indexable insert drill engineered for rapid metal removal. Featuring a 24.5mm cutting diameter and a 4D depth-to-diameter ratio, this tool is the definitive choice for high-speed internal cooling drilling. It is optimized for heavy-duty CNC machining in carbon steel, alloy steel, and stainless steel.
Model Code Specification
Technical Data & Metric/Imperial Comparison
| Feature | Metric Model (mm) | Imperial Equivalent (Inch) |
|---|---|---|
| Cutting Diameter (SD) | 24.5 mm | 0.9645" |
| Shank Diameter | 25.0 mm | 0.984" |
| Max Drilling Depth (4D) | 98.0 mm | 3.858" |
Recommended Cutting Parameters
Optimize your CNC holemaking with these settings for WC series rapid drills:
- Cutting Speed (Vc): 120 - 200 m/min (Material dependent).
- Feed Rate (f): 0.05 - 0.15 mm/rev.
- Coolant: High-pressure internal cooling is mandatory for effective chip evacuation.
Premium Material & Optimized Spiral Flute
Constructed from high-performance alloy steel with specialized anti-vibration quenching, this WC04 insert holder ensures maximum rigidity. The wide spiral flute geometry is specifically engineered for "forced" chip removal, preventing chip-packing—the primary cause of tool failure in 24.5mm deep hole drilling. The nickel-plated body minimizes friction and prevents chip welding during high-speed operations.
WC Series U-Drill: Advantages & Considerations
- Uses WCMX / WCMT inserts with 4 cutting edges (Cost-effective).
- Stable performance on uneven or curved entry surfaces.
- Fast chip breaking on low-carbon and alloy steels.
- Requires higher spindle torque.
- Surface finish may require secondary finishing for high-precision bores.
Verified Customer Reviews
"Excellent rigidity for 24.5mm holes. The 4D length holds tolerance perfectly."
- Marcus G., Germany ⭐⭐⭐⭐⭐
"Great value. Swapped our name-brand drills for BEYOND. No difference in life."
- Kenji S., Japan ⭐⭐⭐⭐⭐
"Fast shipping to the US. The internal coolant makes a massive difference."
- Robert H., USA ⭐⭐⭐⭐⭐
"Perfect fit for my CNC lathe. Using WCMX04 inserts and it cuts like butter."
- Luca M., Italy ⭐⭐⭐⭐⭐
Questions & Answers
Q: Does this include the inserts?
A: No, this is the drill body only. You will need WC04 inserts.
Q: Can I use this on a manual drill press?
A: No, U-drills require high torque and precision coolant pressure found on CNC machines.
Q: What is the maximum drilling depth?
A: This 4D model can drill up to 98mm deep.
Pro-Tip: Choosing Drill Depth (2D to 5D)
- 2D/3D: Maximum rigidity; best for shallow holes and high-feed roughing.
- 4D (Current Model): The balanced universal standard for industrial deep-hole machining.
- 5D: Specialized deep-hole drill bit. Requires extreme 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.