BEYOND SP C32-5D-SD30-SP09 Indexable U-Drill | 30mm 5D CNC Deep Hole Drill Body
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BEYOND SP C32-5D-SD30-SP09
30mm 5D Indexable U-Drill | Professional Blind Hole Boring Specialist
High-Rigidity 30mm Deep Hole Drilling
The BEYOND SP C32-5D-SD30-SP09 is a premium indexable insert drill engineered for extreme stability in deep hole boring. With a 30mm cutting diameter and a 5D depth ratio, this tool is the industry standard for blind hole machining. Featuring internal cooling and a specialized spiral flute, it ensures high-speed efficiency in CNC lathe operations.
Model Code Specification
Technical Data & Units Comparison
| Feature | Metric (mm) | Imperial (Inch) |
|---|---|---|
| Drilling Diameter (SD) | 30.0 mm | 1.181" |
| Shank Diameter (C) | 32.0 mm | 1.259" |
| Max Drilling Depth (5D) | 150.0 mm | 5.905" |
| Compatible Grade | SPMG090408 | SPMG 332 Ref. |
20CrMnTi Alloy & U-Groove Design
Body Material & Durability: This U-drill body is manufactured from 20CrMnTi high-strength alloy steel. Through vacuum quenching and specialized tempering, the body reaches HRC 50-55 surface hardness, ensuring it withstands the high torque of large diameter boring while maintaining a shock-resistant core.
Spiral Flute Geometry: The optimized spiral flute (U-groove) design provides superior chip space. Paired with dual internal cooling holes, it flushes chips instantly from 150mm deep bores, preventing chip packing—the #1 cause of tool failure in CNC deep hole drilling.
Recommended Cutting Parameters (5D 30mm)
Based on Carbon Steel (HB < 250). Adjust based on machine rigidity:
- Cutting Speed (Vc): 110 - 160 m/min
- Feed Rate (f): 0.08 - 0.15 mm/rev
- Rotation Speed (N): Calculated as $$N = \frac{Vc \times 1000}{\pi \times 30}$$
- Coolant Pressure: High-pressure internal cooling (Min 1.5 MPa) is mandatory for 5D.
SP Series U-Drill Analysis
- 4-edge SPMG square inserts for maximum economy.
- Superior verticality for blind hole bottom accuracy.
- Higher core thickness for deep 5D reach stability.
- Requires higher spindle torque than smaller diameters.
- Sensitive to unstable coolant pressure.
What Customers Are Saying
"Best for Blind Holes"
"Switched from WC to this SP drill for my blind bores. The bottom finish is much flatter and cleaner."
- Robert H. (USA)"Highly Rigid"
"At 5D depth, the vibration is minimal. 20CrMnTi steel really makes a difference."
- Klaus W. (Germany)"Smooth Chip Evacuation"
- Hiroshi T. (Japan)
"Excellent value for BEYOND brand"
- Marc L. (France)
"Drilling 45# steel like butter"
- Liam G. (UK)
Technical Q&A
Q: Why is this U-drill better for blind holes?
A: The SP series uses square inserts which create a flatter bottom profile compared to the trigon shape of WC drills.
Q: Do I need a pilot hole for 5D drilling?
A: For 5D (150mm), we highly recommend starting with a 1D or 2D short U-drill to guide the deep hole tool for maximum straightness.
Q: Can I use this for shallow boring?
A: Yes, it works for shallow hole drilling, but it is specifically optimized for deep reach.
Machinist Tip: SP vs. WC U-Drills
SP Series (Square): The professional choice for Blind Hole (Blind Bores). Its square insert geometry provides superior hole bottom flatness and enhanced tool core rigidity for 5D depths.
WC Series (Trigon): Primarily designed for Through Hole applications. WC inserts offer more cutting edges but the body is slightly less rigid for extreme depth penetration.
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.