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.
Technical FAQ & Buying Guide
Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.
We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:
- For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
- For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
The optimal cutting parameters vary depending on the workpiece hardness and operation type:
- For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
- For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.
We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.
All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.