BEYOND SP C32-5D-SD34-SP11 Indexable U-Drill | 34mm CNC Deep Hole Drill Body
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BEYOND SP C32-5D-SD34-SP11
34mm 5D Indexable U-Drill | High-Rigidity CNC Deep Hole Boring Body
Industrial-Grade 34mm Deep Hole Specialist
The BEYOND SP C32-5D-SD34-SP11 is a professional indexable insert drill engineered for precision metal removal. With a 34mm cutting diameter and a massive 5D depth-to-diameter ratio, this fast hole U-drill is the ultimate tool for deep hole boring in structural steels and alloys. Designed for CNC lathe metal boring, it features optimized internal cooling to handle high thermal loads during high-speed drilling.
Model Identification Guide
Technical Data & Metric/Imperial Conversion
| Feature | Metric (mm) | Imperial (Inch) |
|---|---|---|
| Drilling Diameter (SD) | 34.0 mm | 1.339" |
| Shank Diameter (C) | 32.0 mm | 1.259" |
| Max Drilling Depth (5D) | 170.0 mm | 6.693" |
| Compatible Inserts | SPMG110408 | SPMG 432 Ref. |
20CrMnTi Alloy & Advanced Spiral Flute
Superior Tool 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 while the core remains tough to withstand the torque of shallow hole drilling and deep 170mm boring.
Optimized U-Groove Flute: The spiral flute geometry is precision-engineered with extra-large chip slots. Paired with dual internal cooling holes, it allows high-pressure coolant to flush metal chips out of the hole instantly, protecting your carbide inserts from chip re-cutting.
Recommended Cutting Parameters (5D 34mm)
Suggested for Carbon Steel (HB < 250). Adjust based on rigidity:
- Cutting Speed (Vc): 110 - 160 m/min
- Feed Rate (f): 0.08 - 0.15 mm/rev
- Rotation Speed (N): Calculated as $$N = \frac{Vc \times 1000}{\pi \times 34}$$
- Coolant Requirement: High-pressure internal cooling is mandatory for 5D depth.
SP Series U-Drill: Advantages & Considerations
- Uses 4-edge SPMG square inserts (High economic efficiency).
- Exceptional stability and verticality for 170mm deep holes.
- Stronger core rigidity than WC drills, reducing deflection.
- Requires higher spindle power/torque.
- Requires high-pressure coolant for chip flushing.
Verified Customer Feedback
"Solid Deep Hole Performance"
"Used for 170mm boring in 4140. Body is very rigid, no vibration. Great tool from BEYOND."
- Robert H. (USA)"Chips flow perfectly"
"Internal cooling works as advertised. The spiral flute clears chips easily even at full depth."
- Klaus M. (Germany)"Excellent value"
- Hiroshi T. (Japan)
"Robust build"
- Alessandro P. (Italy)
"Highly recommended"
- Francois L. (France)
Technical Support Q&A
Q: What is the benefit of the Side-Lock (C32) shank?
A: It provides a massive clamping surface to prevent the tool from spinning in the holder during high-torque 34mm cuts.
Q: Is a pilot hole required?
A: For 5D drilling, we recommend starting with a short 2D U-drill starter hole to ensure the 5D tool stays perfectly vertical.
Q: Can I use this for off-center drilling?
A: Yes, U-drills can handle off-center starts on CNC lathes, but reduce the feed rate during entry.
Technical Tip: SP vs. WC U-Drills
SP Series (Square): The professional choice for Blind Hole (Blind Bores). The square insert geometry provides a flatter hole bottom. Superior rigidity for Deep Hole (5D) drilling.
WC Series (Trigon): Primarily used for Through Hole applications. WC inserts offer more cutting edges per insert but the tool core is less rigid than SP for extreme depths.
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.