BEYOND WC25-2D-SD18.5-WC03 Indexable U-Drill | 18.5mm CNC Fast Hole Drill
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BEYOND WC25-2D-SD18.5-WC03
Industrial 18.5mm 2D Indexable U-Drill | High-Performance CNC Boring Body
High-Efficiency 18.5mm Indexable Fast Hole Drilling
The BEYOND WC25-2D-SD18.5-WC03 is a professional indexable insert drill engineered for rapid material removal in CNC machining centers. As a specialized fast hole U-drill, it features an 18.5mm cutting diameter with a 2D depth ratio and a 25mm straight 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) | 18.5 mm | 0.728" |
| Shank Diameter | 25.0 mm | 0.984" |
| Max Drilling Depth (2D) | 37.0 mm | 1.456" |
| Product Model | WC25-2D-SD18.5 | WC0.98-2D-SD0.73 |
High-Strength 20CrMnTi Alloy & Spiral Flute Geometry
Durable Tool Body: Manufactured from premium 20CrMnTi alloy steel, this indexable drill body undergoes a vacuum quenching process to achieve high surface hardness and core toughness. This material prevents tool deformation during high-torque metal boring and provides superior vibration resistance for consistent shallow hole drilling.
Optimized Spiral Flute (U-Slot): Features an enlarged spiral flute designed for rapid chip evacuation. The precision U-groove geometry works in tandem with dual internal cooling holes to flush chips out instantly, preventing heat buildup and tool deflection in CNC lathe metal boring operations.
Recommended Cutting Parameters
Optimize your 18.5mm U-drill performance with these baseline settings:
- Cutting Speed (Vc): 110 - 180 m/min (Depending on material).
- Feed Rate (f): 0.05 - 0.12 mm/rev.
- Rotation Speed (N): Calculated as $$N = \frac{Vc \times 1000}{\pi \times 18.5}$$
- Coolant strategy: Internal cooling is mandatory for effective chip flushing and heat control.
WC Type U-Drill: Advantages & Considerations
- Uses WC series trigon inserts with 3 usable cutting edges (High economy).
- Better center stability when entering uneven or inclined surfaces.
- Lower cutting resistance compared to square insert drills.
- Roughing tool; hole tolerance is typically (+0.1/-0.2mm).
- Requires stable high-pressure internal coolant pump.
Verified Customer Feedback
"Solid and Rigid"
"The 18.5mm body is surprisingly rigid. Used it on a batch of 45# steel and it didn't flinch. Great tool."
- Klaus H. (Germany)"Excellent value"
"Fast shipping to California. Beats the local prices for this quality."
- Mike R. (USA)"Good chip clearing"
"Internal cooling works perfectly. No chip packing in stainless."
- Hiroshi K. (Japan)"BEYOND Quality"
- Luca B. (Italy)
"Super stable"
- Pierre G. (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 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, at 18.5mm, internal cooling is highly recommended to flush chips and prevent overheating.
Quick Tip: 2D-5D CNC Drill Selection
Choosing the right depth is crucial. 2D drills (like this SD18.5 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.