BEYOND WC32-2D-SD28.5-WC05 Indexable U-Drill | 28.5mm Fast Hole CNC Drill Body
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BEYOND WC32-2D-SD28.5-WC05
Industrial 28.5mm 2D Indexable U-Drill | High-Performance CNC Boring Body
High-Speed 28.5mm Indexable Fast Hole Drilling
The BEYOND WC32-2D-SD28.5-WC05 is a premium indexable insert drill designed for high-efficiency material removal in CNC machining centers. As a specialized fast hole U-drill, it offers a 28.5mm cutting diameter with a 2D depth ratio and a 32mm shank. This tool is engineered for internal cooling drilling across carbon steel, alloy steel, and stainless steel, ensuring maximum productivity for large diameter metal boring projects.
Model Code Specification Breakdown
Technical Data & Metric/Imperial Comparison
| Feature | Metric Model (mm) | Imperial Equivalent (Inch) |
|---|---|---|
| Cutting Diameter (SD) | 28.5 mm | 1.122" |
| Shank Diameter | 32.0 mm | 1.260" |
| Max Drilling Depth (2D) | 57.0 mm | 2.244" |
| Product Model | WC32-2D-SD28.5 | WC1.26-2D-SD1.12 |
Material Excellence & Advanced Flute Design
Durable Tool Body: Built from premium 20CrMnTi alloy steel, the body undergoes a vacuum quenching process to achieve high surface hardness and excellent core toughness. This prevents deformation during high-torque metal boring and ensures stability in high-speed drilling environments.
Optimized Spiral Flute: This indexable drill body features an enlarged spiral flute (U-slot) designed for rapid chip evacuation. The precision U-groove geometry facilitates smooth chip discharge via high-pressure internal cooling, which is critical for maintaining hole accuracy and surface finish.
Recommended Cutting Parameters
Baseline recommendations for the 28.5mm U-drill (Adjust based on material):
- Cutting Speed (Vc): 120 - 200 m/min (Steel); 100 - 160 m/min (Alloy Steel).
- Feed Rate (f): 0.08 - 0.18 mm/rev.
- Rotation Speed (N): Calculated as $$N = \frac{Vc \times 1000}{\pi \times 28.5}$$
- Coolant: Internal coolant is mandatory for chip flushing and heat control.
WC Type U-Drill: Advantages & Considerations
- Uses WCMX / WCMT inserts (3 usable cutting edges for low cost-per-hole).
- Superior stability when entering uneven or inclined surfaces.
- Balanced cutting forces reduce spindle wear on CNC lathes.
- Requires high-pressure coolant for optimal performance.
- Roughing tolerance typically falls within (+0.1/-0.2mm).
Verified Customer Feedback
"Exceptional Rigidity"
Hans B. (Germany)
"Perfect 28.5mm fit"
Kevin S. (USA)
"Smooth chip flow"
Arjun K. (India)
"High quality body"
Jean P. (France)
"Great for CNC Lathe"
Robert L. (UK)
"Fast Delivery"
Chen M. (Singapore)
Frequently Asked Questions
Q: Does this include the Torx wrench and screws?
A: Yes, each BEYOND drill body includes the necessary insert screws and the correct wrench.
Q: Can I use this for through-holes?
A: Yes, it is ideal for both through-holes and flat-bottom blind holes.
Q: What is the benefit of a 32mm shank on a 28.5mm drill?
A: It provides superior clamping stability and vibration reduction compared to smaller shanks.
Quick Tip: 2D-5D CNC Drill Comparison
Choosing the right depth-to-diameter ratio is critical for tool life. 2D drills (like this SD28.5) offer the highest rigidity for high-feed roughing. 3D to 5D drills are for deeper holes but require significantly higher coolant pressure and reduced feed rates to prevent deflection and breakage.
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.