BEYOND WC32-2D-SD31.5-WC06 Indexable U-Drill | 31.5mm CNC Fast Hole Drill Body
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BEYOND WC32-2D-SD31.5-WC06
Industrial 31.5mm 2D Indexable U-Drill | Precision CNC Boring Tool
High-Speed 31.5mm Indexable Fast Hole Drilling
The BEYOND WC32-2D-SD31.5-WC06 is a professional-grade indexable insert drill engineered for rapid material removal in CNC machining centers. As a specialized fast hole U-drill, it features a 31.5mm cutting diameter with a 2D depth ratio and a 32mm 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 & Units Comparison
| Feature | Metric Model (mm) | Imperial Equivalent (Inch) |
|---|---|---|
| Cutting Diameter (SD) | 31.5 mm | 1.240" |
| Shank Diameter | 32.0 mm | 1.260" |
| Max Drilling Depth (2D) | 63.0 mm | 2.480" |
| Product Model | WC32-2D-SD31.5 | WC1.26-2D-SD1.24 |
Material Excellence & Advanced Flute Geometry
Superior Body Material: Forged from high-strength 20CrMnTi alloy steel, the body is vacuum-quenched to achieve a balance of surface hardness and core toughness. This prevents deformation during high-torque metal boring and resists the wear and tear of continuous industrial use.
Precision Spiral Flute: This indexable drill body features an optimized spiral flute designed for rapid chip evacuation. The specific U-groove flute geometry reduces friction and facilitates the smooth discharge of chips through internal coolant channels, crucial for maintaining accuracy in CNC drilling operations.
Recommended Cutting Parameters
Baseline recommendations for the 31.5mm U-drill (Adjust based on machine rigidity):
- Cutting Speed (Vc): 120 - 200 m/min (Mild Steel); 100 - 160 m/min (Alloy Steel).
- Feed Rate (f): 0.08 - 0.18 mm/rev.
- Rotation Speed (N): Calculated as $$N = \frac{Vc \times 1000}{\pi \times 31.5}$$
- Coolant: Internal coolant supply is mandatory for heat dissipation and chip flushing.
WC Type U-Drill: Pros & Cons
- Uses WCMX / WCMT inserts (3 cutting edges for high cost-efficiency).
- Exceptional stability when drilling through uneven or curved surfaces.
- Better balanced cutting forces compared to square insert drills.
- Requires higher spindle power for 31.5mm diameters.
- Hole tolerance is generally (+0.1/-0.2mm); not for precision reaming.
Verified Customer Feedback
"Incredible Rigidity"
Lars P. (Denmark)
"Best 31.5mm Body"
Kevin B. (USA)
"Smooth chip flow"
Arjun V. (India)
"Great for Steel"
Jean L. (France)
"Top Tier Brand"
Robert W. (UK)
Frequently Asked Questions
Q: Is this drill body suitable for 31.5mm through-holes?
A: Yes, it is excellent for both through-holes and blind-holes in all standard CNC metal boring tasks.
Q: Does it include the insert screws?
A: Yes, each BEYOND drill body comes with the necessary Torx screws and wrench.
Q: Can I use this on a manual lathe?
A: It is recommended for CNC machines due to the feed rate and internal cooling requirements needed for 31.5mm diameters.
Selection Guide: 2D-5D CNC Drill Comparison
Rigidity decreases as depth increases. 2D drills (like this SD31.5) offer maximum rigidity, allowing for the highest feed rates. 3D to 5D drills are used for deeper cavities but require higher coolant pressure and reduced feed rates to prevent tool deflection.
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.