BEYOND SP C40-5D-SD49-SP14 Indexable U-Drill | 49mm Deep Hole CNC Drill Body
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BEYOND SP C40-5D-SD49-SP14
Heavy-Duty 49mm 5D Deep Hole U-Drill | Industrial CNC Indexable Drill Body
Industrial 49mm Deep Hole Machining Specialist
The BEYOND SP C40-5D-SD49-SP14 is a powerhouse indexable insert drill designed for large-diameter, high-volume material removal. Featuring a 49mm cutting diameter and a massive 5D depth ratio, this fast hole U-drill is engineered for the most demanding deep hole boring tasks. Designed for CNC lathe metal boring, it utilizes high-pressure internal cooling to ensure thermal stability and precision during high-speed drilling in heavy steel structures and forgings.
Technical Model Identification
Technical Data & Metric/Imperial Conversion
| Feature | Metric (mm) | Imperial (Inch) |
|---|---|---|
| Cutting Diameter (SD) | 49.0 mm | 1.929" |
| Shank Diameter | 40.0 mm | 1.574" |
| Max Drilling Depth (5D) | 245.0 mm | 9.645" |
| Product Model | SP C40-5D-SD49 | SP1.57-5D-SD1.93 |
Premium 20CrMnTi Alloy & Deep-Hole Spiral Flute
Industrial-Grade Material: Deep hole drilling with a 49mm diameter requires extreme tool rigidity. This indexable drill body is forged from 20CrMnTi high-strength alloy steel. The body is vacuum-quenched to achieve a high surface hardness while maintaining a resilient core, effectively dampening vibrations during long-reach boring.
High-Volume Chip Evacuation: The spiral flute geometry is precision-machined to handle the massive chip volume of a 49mm head. The U-groove flute design, paired with dual internal cooling holes, ensures chips are flushed out of the 245mm deep cavity instantly, preventing chip packing and tool fracture.
Recommended Cutting Parameters (5D 49mm)
For optimal performance in deep-hole applications:
- Cutting Speed (Vc): 80 - 140 m/min (Standard Steel).
- Feed Rate (f): 0.08 - 0.15 mm/rev (Reduce by 20% for 5D depth entry).
- Rotation Speed (N): Calculated as $$N = \frac{Vc \times 1000}{\pi \times 49}$$
- Mandatory: High-pressure, high-volume internal cooling.
SP Type U-Drill: Advantages & Considerations
- Uses SPMG square inserts with 4 usable cutting edges (extremely economical).
- Superior hole verticality and dimensional accuracy at 5D depths.
- Better wall finish than WC-type drills in large diameters.
- High torque requirement; requires 15kW+ spindle power for 49mm.
- Chip management is critical; must have high-pressure coolant.
Verified Customer Reviews
"Massive and Stable"
"Drilling through 200mm plate steel with this tool was a breeze. No drift, perfectly straight."
- Robert B. (USA)"Industrial Grade"
"Excellent value for 49mm. The 5D reach is great for our large engine block repairs."
- Hans M. (Germany)"Fast Chip Flow"
"With 20 bar coolant, the chips fly out. Very impressed with the BEYOND quality."
- Takashi Y. (Japan)"Solid performance"
- Luca V. (Italy)
"Great deep-hole tool"
- Pierre D. (France)
Frequently Asked Questions
Q: Can I use this on a manual machine?
A: No. A 49mm 5D drill requires high spindle power and internal high-pressure coolant only found on CNC machines.
Q: Do I need a pilot hole?
A: For 5D drilling at this diameter, starting with a 1D or 2D U-drill for the first 30mm will significantly improve tool life and hole straightness.
Q: What is the benefit of the Side-Lock (C40) shank?
A: The C40 shank allows for massive clamping force, preventing the tool from rotating in the holder under the high torque of a 49mm cut.
Deep Hole Pro Tip: 2D vs. 5D
2D Drills: Maximum rigidity, best for shallow roughing and high-feed work.
5D Drills: Designed for reach. Because the 5D body is longer, it is more prone to deflection. For a 49mm hole, ensure your CNC machine is robust enough to handle the lateral forces. Always prioritize internal cooling to clear the massive chips produced.
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.