BEYOND WC20-3D-SD16.5-WC03 Indexable U-Drill | 16.5mm 3D CNC Insert Drill Body
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BEYOND WC20-3D-SD16.5-WC03
Precision 3D Indexable U-Drill | 16.5mm Industrial CNC Tooling
High-Efficiency 16.5mm Indexable Holemaking
The BEYOND WC20-3D-SD16.5-WC03 is a professional-grade indexable insert drill engineered for rapid material removal in heavy-duty CNC machining. This model features a 20mm shank and a 16.5mm cutting diameter with a 3D depth ratio. Optimized for high-speed internal cooling drilling, it provides exceptional stability and efficient chip evacuation in various steel alloys.
Model Code Specification
Technical Data & Units Comparison
| Feature | Metric Model (mm) | Imperial Equivalent (Inch) |
|---|---|---|
| Cutting Diameter (SD) | 16.5 mm | 0.650" |
| Shank Diameter | 20.0 mm | 0.787" |
| Max Drilling Depth (3D) | 49.5 mm | 1.949" |
Material Integrity & Optimized Spiral Flutes
Body Material: Crafted from high-performance quenched alloy steel (20CrMnTi), this WC03 insert holder is built to withstand extreme vibration. The surface is nickel-plated to prevent corrosion and reduce friction during chip evacuation.
Spiral Flute Design: Features an optimized spiral flute for smoother chip discharge, crucial for 16.5mm precision drilling where chip clogging can lead to tool breakage.
Recommended Cutting Parameters
Optimize your CNC lathe performance with these baseline settings:
- Cutting Speed (Vc): 130 - 230 m/min (Depending on material hardness).
- Feed Rate (f): 0.05 - 0.12 mm/rev.
- Rotation Speed (N): $$N = \frac{Vc \times 1000}{\pi \times 16.5}$$
- Coolant: Internal high-pressure coolant is required for maximum tool life.
Why Choose WC Trigon Inserts?
- Uses WCMX / WCMT inserts with 3 usable cutting edges.
- More economical than square (SP) inserts for small diameters.
- Excellent performance in low-to-medium carbon steels.
- Hole tolerance is slightly broader than solid carbide drills.
- Requires high pressure for efficient coolant delivery at 16.5mm.
Verified Customer Feedback
"Compact & Rigid"
Markus T. (Germany)
"Ideal for our CNC"
Sarah G. (UK)
"Fast Chip Removal"
Jung H. (South Korea)
Frequently Asked Questions
Q: What is the difference between WC20 and WC25 shanks?
A: WC20 signifies a 20mm shank diameter, while WC25 is 25mm. Ensure your tool holder matches the 20mm shank of this model.
Q: Can I use SP inserts in this drill?
A: No, this body is specifically designed for WC (Trigon) style inserts size 03.
Q: Is the coolant pipe included?
A: The drill body has internal channels. Standard coolant connectors for your machine will be needed.
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.