BEYOND SP C32-5D-SD36.5-SP11 Indexable U-Drill | 36.5mm CNC Deep Hole Drill Body
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BEYOND SP C32-5D-SD36.5-SP11
36.5mm 5D Indexable U-Drill | Professional CNC Deep Hole Boring Body
High-Efficiency 36.5mm Deep Hole Drilling
The BEYOND SP C32-5D-SD36.5-SP11 is a high-performance indexable insert drill engineered for large-diameter metal removal. With its 36.5mm cutting diameter and a powerful 5D depth ratio, this fast hole U-drill is the ultimate solution for deep hole boring in industrial CNC applications. Utilizing internal cooling technology, it maintains stability during high-speed drilling in carbon steel, alloy, and stainless steel.
Technical Specification Guide
Technical Data & Metric/Imperial Conversion
| Feature | Metric (mm) | Imperial (Inch) |
|---|---|---|
| Drilling Diameter (SD) | 36.5 mm | 1.437" |
| Shank Diameter (C) | 32.0 mm | 1.259" |
| Max Drilling Depth (5D) | 182.5 mm | 7.185" |
| Compatible Grade | SPMG110408 | SPMG 432 |
20CrMnTi Alloy & Advanced Spiral Flute Design
Industrial-Grade Body Material: This indexable drill body is forged from 20CrMnTi high-strength alloy steel. The surface is vacuum-quenched to achieve HRC 50-55, providing immense wear resistance. Its flexible core prevents fracture during long-reach boring up to 182.5mm.
Optimized U-Groove Spiral Flute: The spiral flute geometry is designed with extra-large chip slots. This ensures that even at 5D depths, chips are effectively flushed out by the internal cooling holes, preventing chip packing and extending the life of your carbide inserts.
Recommended Cutting Parameters (5D 36.5mm)
Optimize your CNC machining with these baseline settings:
- Cutting Speed (Vc): 110 - 160 m/min (Carbon Steel).
- Feed Rate (f): 0.08 - 0.15 mm/rev.
- Rotation Speed (N): Calculated as $$N = \frac{Vc \times 1000}{\pi \times 36.5}$$
- Requirement: High-pressure internal cooling (Min 1.5 MPa) is mandatory for 5D depth.
SP Type U-Drill: Advantages & Considerations
- Uses SPMG square inserts with 4 usable cutting edges (most cost-effective).
- Superior hole verticality and accuracy in deep hole boring.
- Greater body rigidity allows for higher axial force.
- Higher power consumption compared to WC drills.
- Absolute reliance on internal coolant for chip flushing.
Verified Customer Feedback
"Outstanding 5D Performance"
"Drilling 36.5mm in structural steel. The body is very rigid, no vibration at full depth."
- Robert H. (USA)"Excellent Chip Removal"
"The spiral flutes are wide and polished. Combined with coolant, chips never jam."
- Klaus W. (Germany)"Solid and straight bores"
- Hiroshi T. (Japan)
"Highly recommended for CNC"
- Luca B. (Italy)
"Great Value"
- Pierre G. (France)
Technical Support Q&A
Q: What is the benefit of the Side-Lock (C32) shank?
A: It prevents the tool from rotating in the holder under high-torque drilling, ensuring maximum safety.
Q: Is a pilot hole required?
A: For 5D depths, we recommend starting with a 1D or 2D short U-drill to ensure the 5D tool enters perfectly straight.
Q: Does this include the inserts?
A: No, this is the tool body only. Compatible SPMG11 inserts are sold separately in our shop.
Technical Tip: SP vs. WC U-Drills
SP Series (Square): Best choice for Blind Hole (Blind Bores) because the square insert geometry creates a flatter bottom surface. It offers superior rigidity for deep 5D holes.
WC Series (Trigon): Primarily used for Through Hole applications. WC inserts are cheaper but the body is less rigid for extreme depth-to-diameter ratios compared to the SP series.
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.