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.
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.