BEYOND SP C25-3D-SD19-SP06 Indexable U-Drill Body | 19mm 3D CNC Boring Drill
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BEYOND SP C25-3D-SD19-SP06
19mm 3D Heavy-Duty U-Drill | Precision Blind Hole Boring Specialist
Industrial-Grade 19mm Indexable Boring Solution
The BEYOND SP C25-3D-SD19-SP06 is a professional indexable insert drill designed for high-precision CNC boring. With a 19mm cutting diameter and a 3D depth ratio (57mm max depth), it is specifically engineered for blind hole machining. Featuring internal cooling and a high-performance spiral flute, it offers exceptional chip control and surface finish in carbon steel, alloy steel, and stainless steel.
Decoding the Model: SP C25-3D-SD19-SP06
Metric & Imperial Technical Specifications
| Feature | Metric (mm) | Imperial (Inch) |
|---|---|---|
| Drilling Diameter (SD) | 19.0 mm | 0.748" |
| Shank Diameter (C) | 25.0 mm | 0.984" |
| Max Drilling Depth (3D) | 57.0 mm | 2.244" |
| Equivalent Model | SP-C0.984-3D-SD0.748-SP06 | |
Forged 20CrMnTi Alloy & Precision Spiral Flute
Industrial Build: This indexable drill body is forged from 20CrMnTi alloy steel and vacuum quenched (HRC 52-55) for maximum rigidity. The large diameter drilling stability ensures minimal deflection during deep 3D bores. A Black Oxide surface treatment provides long-lasting resistance to wear and heat.
Advanced Slot Design: The U-drill features an optimized spiral flute (U-groove) that creates a smooth pathway for chip removal. Integrated internal cooling holes allow high-pressure coolant to flush metal chips directly from the cutting zone, essential for blind hole machining.
Recommended Cutting Parameters (19mm 3D)
Suggested for Carbon Steel and Alloy Steel. Use the formula below for your CNC setup:
Rotation Speed (N) = (Vc × 1000) / (π × 19)
Vc = Cutting Speed | π ≈ 3.14 | D = 19mm
- Cutting Speed (Vc): 130 - 210 m/min
- Feed Rate (f): 0.05 - 0.12 mm/rev
- Coolant: High-pressure internal cooling is mandatory for 19mm 3D depth.
Pair with a high-rigidity C25 side-lock holder for maximum stability:
SHOP COMPATIBLE C25 TOOL HOLDERSVerified Global Reviews
"Excellent 19mm Body"
"Perfect for our blind hole boring tasks. The BEYOND quality is much higher than other budget drills."
- Hans M. (Germany)
"Internal coolant works perfectly. No more chip jams in deep bores."
- Marek W. (Poland)
"Matches our SPMG06 inserts with zero play. Highly recommended."
- Pedro S. (Brazil)
"Solid drill. Fast delivery to London."
- Arthur L. (UK)
"Industrial quality. Our shop uses these daily for Geely auto parts."
- Y. Watanabe (Japan)
SP Series Indexable Drill: Advantages & Considerations
- Uses 4-edge SPMG square inserts for lower cost-per-edge.
- Optimized for Blind Hole Machining (Flatter hole bottom profile).
- Reinforced body core provides maximum rigidity for 19mm diameters.
- Requires high horsepower CNC machines to drive a 19mm drill effectively.
- Performance is highly dependent on high-pressure internal coolant.
Technical Q&A
Q: Why choose SP over WC for blind hole drilling?
A: SP square inserts create a significantly flatter bottom profile. The SP body is also designed with a thicker core, essential for large diameter boring stability.
Q: Is this tool body compatible with all SPMG06 inserts?
A: It is designed for standard SPMG060204 carbide inserts. Using BEYOND brand inserts is recommended for the best fit and tool life.
Q: Can I use this on a manual drill press?
A: No. Indexable U-drills require the high torque and rigidity of a CNC Lathe or Milling Machine.
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 19mm machining.
WC Series (Trigon): Primarily used for Through Hole applications. WC inserts offer more cutting edges (3x2), but the body core is thinner, making it less rigid for 19mm blind hole 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.