BEYOND WC25-2D-SD16-WC03 Indexable U-Drill | 16mm CNC Fast Hole Drill Body
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BEYOND WC25-2D-SD16-WC03
Precision 16mm 2D Indexable U-Drill | High-Speed CNC Metal Boring Body
High-Performance 16mm Indexable Fast Hole Drilling
The BEYOND WC25-2D-SD16-WC03 is a professional-grade indexable insert drill designed for high-efficiency material removal. As a specialized fast hole U-drill, it offers a 16mm cutting diameter with a 2D depth ratio. This internal cooling drill is perfect for CNC lathe metal boring, ensuring smooth chip evacuation and long tool life in carbon steel, alloy steel, and stainless steel applications.
Model Identification Guide
Technical Data & Metric/Imperial Conversion
| Feature | Metric Model (mm) | Imperial Equivalent (Inch) |
|---|---|---|
| Cutting Diameter (SD) | 16.0 mm | 0.629" |
| Shank Diameter | 25.0 mm | 0.984" |
| Max Drilling Depth (2D) | 32.0 mm | 1.259" |
| Product Model | WC25-2D-SD16 | WC0.98-2D-SD0.63 |
20CrMnTi Alloy Steel & Precision Spiral Flute
Superior Material Composition: The body is forged from 20CrMnTi industrial-grade alloy steel. This material undergoes advanced vacuum quenching, resulting in a high surface hardness and an incredibly tough core. It is engineered to resist the high-torque demands of CNC metal boring without vibration or deformation.
Advanced Spiral Flute Geometry: The spiral U-slot is designed with an enlarged capacity for rapid chip evacuation. This chip-breaker flute design, combined with pressurized internal coolant holes, ensures that metal waste is ejected instantly, preventing tool damage during high-speed drilling.
Recommended Cutting Parameters
Baseline settings for the 16mm U-drill (Vary by workpiece material):
- Cutting Speed (Vc): 120 - 200 m/min.
- Feed Rate (f): 0.05 - 0.10 mm/rev.
- Rotation Speed (N): Calculated as $$N = \frac{Vc \times 1000}{\pi \times 16}$$
- Mandatory: Use internal cooling to prevent thermal shock to the inserts.
WC Type U-Drill: Pros and Cons
- Uses WC series inserts (Trigon style) with 3 cutting edges for extreme cost-efficiency.
- Exceptional stability on uneven or curved entry surfaces.
- Lower spindle load compared to square-insert drills.
- Roughing tolerance typically (+0.1 / -0.2mm).
- Requires high-pressure coolant for optimal performance.
Customer Feedback
"Excellent for CNC Lathe"
"The 16mm diameter is perfect for my small parts production. Very rigid body and easy chip evacuation."
- Mark D. (USA)"Rigid and Precise"
"Using this with WCMX03 inserts in 304 Stainless. No chatter at all. Great value compared to high-end brands."
- Günter W. (Germany)"Fast Shipping"
"Arrived in Japan in 4 days. The 20CrMnTi steel quality is evident in the finish."
- Sato K. (Japan)"Great for blind holes"
- Alessandro P. (Italy)
"BEYOND delivers again"
- Jean L. (France)
Frequently Asked Questions
Q: Is the coolant tube included?
A: The U-drill features built-in internal coolant channels. External plumbing to your machine's coolant supply is required.
Q: Does this include the screws and wrench?
A: Yes, each drill body includes the necessary Torx screws and the correct wrench for WC03 inserts.
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.
Quick Tip: 2D vs. 5D Comparison
For 16mm holes, 2D drills offer the highest rigidity, making them ideal for high-feed roughing. If you require deeper holes (up to 80mm), 5D drills are available, though they require lower feed rates and much higher coolant pressure to ensure chip clearance.
Need Help With BEYOND Inserts?
Looking for a BEYOND equivalent, alternative grade, or sample catalog? Our CNC specialists have helped 50+ manufacturers in aerospace, automotive, and medical machining source the right tooling at 30–50% lower cost than OEM prices.
This BEYOND insert is in stock. 24-hour quote response. ISO 9001 certified. Ships from Hangzhou in 3–7 days.
Technical FAQ & Buying Guide
When choosing CNC cutting tools, check the full model code, dimensions, grade and selected variant before ordering. Do not rely on the product image alone.
For carbide inserts, tool holders, drills and end mills, compare the mounting dimensions, connection type and manufacturer's specifications with your holder or machine. If you are unsure, share your existing part number and machining application with us before ordering.
Check the product listing for the selling unit, pack quantity and included components. If it is unclear whether the price is per piece or per pack, or whether a tool body and inserts are sold separately, contact us before purchasing.
Select cutting speed, feed rate and depth of cut using the relevant manufacturer's recommendations for your tool model, workpiece material, machine conditions and coolant method. The same settings are not suitable for every product or application.
Our automatic quantity discount is 6% off for 2–9 items and 12% off for 10 or more items, based on the total product quantity in the cart. Other offers may not combine with this discount; check the applicable offer conditions.
According to our shipping policy, orders are typically processed and shipped within 1–3 business days after confirmation. Delivery generally takes 5–20 business days, depending on your destination and shipping method. Customs clearance or unforeseen delays may affect delivery times. A tracking number is sent by email after shipment.