BEYOND WC40-4D-SD40-WC06 U-Drill | 40mm Indexable Insert Drill Bit (4D Depth)
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BEYOND WC40-4D-SD40-WC06
High-Performance 4D Indexable U-Drill | 40mm Diameter
Industrial-Grade 40mm Indexable Drilling
The BEYOND WC40-4D-SD40-WC06 is a heavy-duty indexable insert drill designed for precision and efficiency in CNC lathe and milling operations. With a 40mm cutting diameter and a 4D depth-to-diameter ratio, this U-drill bit is engineered for high-speed internal cooling drilling, ensuring superior chip evacuation and tool longevity in carbon steel, alloy steel, and stainless steel.
Model Code Explained
Technical Specifications & Unit Comparison
| Attribute | Metric Model (mm) | Imperial Equivalent (Inch) |
|---|---|---|
| Cutting Diameter | 40.0 mm | 1.575" |
| Shank Diameter | 40.0 mm | 1.575" |
| Effective Depth (4D) | 160.0 mm | 6.299" |
Recommended Cutting Parameters
To achieve the best results in metal holemaking, follow these parameters:
- Cutting Speed (Vc): 100 - 150 m/min (Material dependent)
- Feed Rate (f): 0.08 - 0.15 mm/rev
- Coolant: High-pressure internal coolant is mandatory for deep hole evacuation.
Material & Flute Design
Crafted from high-performance alloy steel with an anti-vibration quenching process, the WC06 insert holder offers exceptional toughness. The wide spiral flute geometry is precision-machined to ensure "forced" chip removal, significantly reducing the risk of tool breakage during large diameter drilling.
Pros & Cons of WC Series U-Drills
- Uses WCMX / WCMT inserts with 4 cutting edges (Cost-effective).
- Excellent performance on uneven surfaces.
- Higher feed rates compared to standard twist drills.
- Higher torque requirement than SP series.
- Surface finish may require a finishing pass for high-tolerance bores.
Pro-Tip: Choosing the Right Depth (2D to 5D)
Selecting the correct U-drill 4D or 2D body is vital for CNC tooling stability:
- 2D/3D: Highest rigidity; best for fast, shallow hole making.
- 4D (This Model): The versatile industrial standard for deep-hole drilling.
- 5D: Maximum reach; requires extreme coolant pressure and careful feed adjustment.
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.