BEYOND WC25-2D-SD16.5-WC03 Indexable U-Drill | 16.5mm CNC Fast Drill
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BEYOND WC25-2D-SD16.5-WC03
Industrial 16.5mm 2D Indexable U-Drill | High-Performance CNC Boring Body
Precision 16.5mm Indexable Fast Hole Drilling
The BEYOND WC25-2D-SD16.5-WC03 is a professional-grade indexable insert drill engineered for rapid material removal. As a specialized fast hole U-drill, it offers a 16.5mm 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 Code Specification Breakdown
Technical Data & Metric/Imperial Comparison
| Feature | Metric Model (mm) | Imperial Equivalent (Inch) |
|---|---|---|
| Cutting Diameter (SD) | 16.5 mm | ~0.650" |
| Shank Diameter | 25.0 mm | 0.984" |
| Max Drilling Depth (2D) | 33.0 mm | 1.299" |
| Product Model | WC25-2D-SD16.5 | WC0.98-2D-SD0.65 |
Advanced 20CrMnTi Alloy & Spiral Flute Design
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.
Optimized Spiral Flute (U-Groove): Features an enlarged spiral flute designed for rapid chip evacuation. The precision U-groove flute geometry prevents chip packing and heat buildup by utilizing dual internal cooling holes, which flush out metal chips instantly during shallow hole drilling.
Recommended Cutting Parameters
Optimize your 16.5mm U-drill performance with these baseline settings:
- Cutting Speed (Vc): 110 - 190 m/min (Depending on material).
- Feed Rate (f): 0.05 - 0.12 mm/rev.
- Rotation Speed (N): Calculated as $$N = \frac{Vc \times 1000}{\pi \times 16.5}$$
- Mandatory: Internal cooling is essential for chip flushing and tool life.
WC Type U-Drill: Advantages & Considerations
- Uses WC series inserts (Trigon style) with 3 cutting edges (Economic).
- Exceptional stability on uneven or curved entry surfaces.
- Lower spindle load compared to square-insert drills.
- Roughing tool; hole tolerance typically (+0.1 / -0.2mm).
- Requires stable high-pressure internal coolant pump.
Verified Customer Feedback
"Solid Rigid Body"
"Used it on my DMG Mori lathe for 4140 steel. Minimal vibration and the 16.5mm size is spot on."
- Klaus H. (Germany)"Excellent value"
"Great performance for the price. Fast shipping to the US."
- Robert M. (USA)"Good chip breaking"
"Internal cooling works perfectly. No chip packing issues."
- Hiroshi T. (Japan)"Highly recommended"
- Luca F. (Italy)
"Reliable Tool"
- Pierre G. (France)
Expert Q&A
Q: Does this include the Torx wrench and screws?
A: Yes, each BEYOND drill body includes the necessary 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 mandatory?
A: Yes. To ensure the 16.5mm diameter clears chips effectively, internal coolant is essential.
Quick Tip: 2D-5D CNC Drill Selection
Choosing the right depth is crucial. 2D drills (like this SD16.5 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.
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.