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.
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.