BEYOND WC25-4D-SD18.5-WC03 U-Drill | 18.5mm Indexable Insert Drill (4D Depth)
Free shipping on all orders.
Check compatibility: Confirm the model and dimensions before ordering.
Need help choosing? Contact us before ordering.
💰 Bulk savings 2-9 pcs · 6% OFF | 10+ pcs · 12% OFF
BEYOND WC25-4D-SD18.5-WC03
High-Rigidity 4D Indexable U-Drill | 18.5mm Precision CNC Tooling
Rapid 18.5mm Indexable Holemaking
The BEYOND WC25-4D-SD18.5-WC03 is an industrial-grade indexable insert drill engineered for high-speed metal removal. With an 18.5mm cutting diameter and a 4D depth-to-diameter ratio, this tool is optimized for internal cooling drilling. It provides exceptional stability in carbon steel, alloy steel, and stainless steel, making it the perfect CNC machining tool for demanding production cycles.
Model Code Specification
Technical Data & Metric/Imperial Comparison
| Feature | Metric Model (mm) | Imperial Equivalent (Inch) |
|---|---|---|
| Cutting Diameter (SD) | 18.5 mm | 0.7283" |
| Shank Diameter | 25.0 mm | 0.984" |
| Max Drilling Depth (4D) | 74.0 mm | 2.913" |
Recommended Cutting Parameters
For optimal metal holemaking, follow these standard guidelines:
- Cutting Speed (Vc): 100 - 180 m/min (Material dependent).
- Feed Rate (f): 0.05 - 0.12 mm/rev.
- Coolant Strategy: Use high-pressure internal coolant to flush chips effectively from the 18.5mm bore.
Premium Material & Specialized Chip Groove
Constructed from high-performance quenched alloy steel, this WC03 insert holder offers superior anti-vibration properties. The wide spiral flute geometry is precision-machined for "forced" chip removal, preventing chip welding and tool failure during 18.5mm deep drilling. The nickel-plated body ensures corrosion resistance and smooth chip flow during high-speed feed cycles.
WC U-Drill: Advantages & Considerations
- Uses WCMX / WCMT inserts with 3 usable cutting edges (High economy).
- Stable entry even on uneven or curved surfaces.
- Lower spindle torque requirement compared to large carbide drills.
- Higher power consumption than standard twist drills.
- Final tolerance may require secondary finishing for H7 specs.
Verified Customer Reviews
"Top Tier Stability" - Hans M. (Germany)
The 4D length works flawlessly on my CNC lathe for alloy steel.
"Incredible Value" - Mark T. (USA)
Equivalent to high-end brands at a fraction of the cost. Rigid body!
"Perfect Cooling" - Hiroshi S. (Japan)
Internal coolant ports provide consistent flow. Very clean holes.
"Professional Grade" - Liam W. (Australia)
High precision 18.5mm diameter. Use it daily in stainless 304.
"Reliable Tooling" - Ricardo P. (Brazil)
The nickel finish is durable and resists chip welding perfectly.
Product FAQ
A: This is a 4D model, allowing for a maximum depth of 74mm (18.5mm x 4).
A: No, this is the drill body only. It includes the insert screws and the correct Torx wrench.
A: Yes, the WC series creates a relatively flat bottom, ideal for blind holes in CNC machining.
Pro-Tip: Choosing Drill Depth (2D to 5D)
The L/D ratio is critical for efficient holemaking success:
- 2D/3D: Maximum rigidity; best for shallow holes and high-feed roughing.
- 4D (This Model): The industrial balanced standard for deep-hole machining.
- 5D: Specialized long reach drill. Requires extreme coolant pressure to maintain hole straightness.
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.