BEYOND SP C40-3D-SD54-SP09 Indexable U-Drill Body | 54mm 3D CNC Large Hole Drill
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BEYOND SP C40-3D-SD54-SP09
54mm 3D Heavy-Duty U-Drill | Precision Large Diameter Blind Hole Specialist
Industrial-Grade 54mm Indexable Boring Solution
The BEYOND SP C40-3D-SD54-SP09 is a high-performance indexable insert drill engineered for maximum material removal in large diameter boring. With a massive 54mm cutting diameter and a 3D depth ratio (162mm reach), this tool is the ultimate choice for blind hole machining. Featuring internal cooling and a precision-engineered spiral flute, it ensures stable chip evacuation even in heavy-duty industrial CNC applications.
Decoding the Model: SP C40-3D-SD54-SP09
Metric & Imperial Technical Specifications
| Feature | Metric (mm) | Imperial (Inch) |
|---|---|---|
| Drilling Diameter (SD) | 54.0 mm | 2.126" |
| Shank Diameter (C) | 40.0 mm | 1.575" |
| Max Drilling Depth (3D) | 162.0 mm | 6.378" |
| Equivalent Model | SP-C1.575-3D-SD2.126-SP09 | |
Reinforced 20CrMnTi Alloy & Power-Groove Flute
Industrial-Grade Build: Forged from high-tensile 20CrMnTi alloy steel, the body is vacuum-quenched to HRC 52-55. This provides the extreme rigidity required for large diameter drilling, preventing chatter and ensuring a high-quality surface finish. The black oxide surface treatment enhances corrosion resistance and reduces friction during the boring process.
Heavy-Duty Spiral Flute: The specialized spiral flute (U-groove) is optimized for high-volume chip evacuation. Paired with central internal cooling, it flushes chips out of 162mm deep bores with ease, protecting your carbide inserts from heat build-up and chip packing.
Recommended Cutting Parameters (54mm 3D)
Optimal for Steel and Cast Iron. Adjust based on machine power (high torque required):
- Cutting Speed (Vc): 100 - 150 m/min
- Feed Rate (f): 0.08 - 0.15 mm/rev
- Rotation Speed (N): Calculated as $$N = \frac{Vc \times 1000}{\pi \times 54}$$
- Coolant: High-pressure internal cooling is mandatory for large 54mm diameters.
Looking for a compatible side-lock holder for the 40mm shank?
SHOP COMPATIBLE C40 TOOL HOLDERSGlobal Machinist Reviews
"Massive Power Transmission"
"Drilling 54mm holes in heavy alloy blocks. The 40mm shank is essential for the torque we are pushing. Zero deflection."
- Robert H. (Germany)
"Perfect Blind Bores"
"The flat bottom finish from the SP inserts is exactly what we needed for our manifold valves. High-quality body."
- Marek W. (Poland)
"BEYOND tools always deliver. This 54mm U-drill handles interrupted cuts on cast iron like a champ."
- Pedro S. (Brazil)
"Super fast shipping. Tool body pocket fits SPMG09 perfectly."
- Arthur L. (UK)
"Great value for B2B. Much cheaper than local suppliers without losing performance."
- Y. Watanabe (Japan)
SP Series Indexable Drill: Advantages & Considerations
- Uses 4-edge SPMG square inserts for low cost-per-edge.
- Optimized for Blind Hole Machining (Flatter hole bottom).
- Massive 40mm shank for maximum torque transmission.
- Requires high-power spindle/machine due to large diameter.
- Absolute dependency on high-flow internal coolant to clear 54mm bores.
Technical Q&A
Q: Why use SP instead of WC for a 54mm hole?
A: SP square inserts provide much higher stability and core rigidity, which is essential for massive 54mm cuts. It also leaves a much flatter bottom for blind bores.
Q: Are inserts included in this price?
A: No, this is for the tool body only. You will need SPMG090408 inserts.
Q: Is this suitable for CNC lathes?
A: Yes. It is standard for CNC lathes using C40 side-lock holders or specialized U-drill sleeves for large diameter boring.
Machinist Tip: SP vs. WC U-Drills
SP Series (Square): The professional choice for Blind Hole (Blind Bores). Square inserts create a flatter bottom and offer maximum core strength for large diameter machining.
WC Series (Trigon): Better suited for Through Hole applications. WC inserts offer more cutting edges (Trigon) but the body core is thinner, making it less rigid for 54mm heavy-duty tasks.
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.