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.
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.