BEYOND SP25-5D-SD17-SP06 Indexable U-Drill | 17mm Deep Hole CNC Drill Body
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BEYOND SP25-5D-SD17-SP06
Industrial 17mm 5D Deep Hole U-Drill | Professional CNC Indexable Drill Body
High-Performance 17mm Deep Hole Drilling
The BEYOND SP25-5D-SD17-SP06 is an elite indexable insert drill specifically designed for deep hole boring. With a 17mm cutting diameter and a massive 5D depth-to-diameter ratio, this fast hole U-drill handles challenging tasks where standard drills fail. Engineered for CNC lathe metal boring, it utilizes internal cooling to maintain precision and extend tool life during high-speed drilling in carbon steel, alloy, and stainless steel.
Model Code Specification Decoding
Technical Data & Metric/Imperial Conversion
| Feature | Metric Model (mm) | Imperial Equivalent (Inch) |
|---|---|---|
| Cutting Diameter (SD) | 17.0 mm | 0.669" |
| Shank Diameter | 25.0 mm | 0.984" |
| Max Drilling Depth (5D) | 85.0 mm | 3.346" |
| Product Model | SP25-5D-SD17 | SP0.98-5D-SD0.67 |
Enhanced 20CrMnTi Alloy & Deep-Hole Spiral Flute
Anti-Vibration Body Material: This 17mm 5D drill is crafted from premium 20CrMnTi alloy steel. Because 5D depth increases the risk of vibration, our indexable drill body undergoes vacuum quenching to ensure a hardened surface with a high-toughness core. This industrial-grade material provides the necessary rigidity for long-reach boring.
High-Efficiency Spiral Flute (U-Groove): Deep holes require perfect chip evacuation. Our spiral flute geometry features a wide U-slot polished for smooth chip flow. Integrated with pressurized internal cooling holes, it flushes chips out of the 85mm deep cavity instantly, preventing tool breakage and ensuring a superior surface finish.
Recommended Cutting Parameters (5D)
For 5D deep hole applications, stability is key. Recommended baseline settings:
- Cutting Speed (Vc): 100 - 160 m/min (Steel).
- Feed Rate (f): 0.04 - 0.08 mm/rev (Lower feed is recommended for 5D to ensure verticality).
- Rotation Speed (N): Calculated as $$N = \frac{Vc \times 1000}{\pi \times 17}$$
- Requirement: High-pressure internal cooling (Min 2.0 MPa) is essential for 5D evacuation.
SP Type U-Drill: Advantages & Considerations
- Uses SPMG series square inserts with 4 cutting edges (high efficiency).
- Superior hole verticality and accuracy compared to WC types.
- Better surface finish in deep hole (5D) applications.
- Higher cutting resistance than WC drills; requires higher spindle power.
- Requires higher coolant pressure for effective chip flushing in deep holes.
Customer Success Stories
"Incredible Depth"
"Needed 80mm depth in mild steel. This 5D body is incredibly stable and the hole is straight as an arrow."
- Jonathan P. (USA)"Perfect for deep boring"
"The internal cooling pressure is the secret. Great tool from BEYOND, very rigid."
- Dieter S. (Germany)"Excellent Finish"
"SP inserts give a much better wall finish than the WC type. Using it for hydraulic blocks."
- Hiro K. (Japan)"Sturdy and fast"
- Marco G. (Italy)
"Great quality body"
- Etienne L. (France)
Deep Hole Drilling Q&A
Q: Why choose SP over WC for 5D drilling?
A: SP (Square) inserts provide better balance in deep holes, leading to straighter holes and better dimensional accuracy at 5x diameter depths.
Q: Do I need a pilot hole for 5D U-drills?
A: While not strictly required, using a 2D U-drill or a center drill to create a shallow pilot (1-2mm) can improve the verticality for deep 5D drilling.
Q: What coolant pressure is recommended?
A: For a 17mm 5D drill, we recommend a minimum of 20-30 bar (290-435 PSI) to ensure chips are cleared from the bottom of the hole.
Deep Hole Pro Tip: 2D vs. 5D
2D/3D Drills: High rigidity, high feed, excellent for shallow holes and roughing.
5D Drills: Specialized for deep penetration. Because the tool is longer, it is more susceptible to deflection. Always ensure your workpiece is clamped securely and your machine spindle is in top condition before 5D operations.
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.