BEYOND SP C25-2D-SD22.5-SP07 Indexable U-Drill Body | 22.5mm 2D CNC Boring Drill
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BEYOND SP C25-2D-SD22.5-SP07
22.5mm 2D Heavy-Duty U-Drill | Precision Blind Hole Boring Specialist
Precision 22.5mm Indexable Boring Solution
The BEYOND SP C25-2D-SD22.5-SP07 is a high-performance indexable insert drill engineered for high-speed CNC boring and rapid hole drilling. Featuring a 22.5mm cutting diameter and a 2D depth ratio (45mm reach), this tool is the primary choice for blind hole machining. Equipped with internal cooling and optimized spiral flutes, it ensures superior chip evacuation and surface finish in carbon steel, alloy steel, and stainless steel.
Decoding the Model: SP C25-2D-SD22.5-SP07
Metric & Imperial Technical Specifications
| Feature | Metric (mm) | Imperial (Inch) |
|---|---|---|
| Drilling Diameter (SD) | 22.5 mm | 0.886" |
| Shank Diameter (C) | 25.0 mm | 0.984" |
| Max Drilling Depth (2D) | 45.0 mm | 1.771" |
| Equivalent Model | SP-C1.0-2D-SD0.886-SP07 | |
High-Rigidity 20CrMnTi Alloy & Precision Flute Design
Premium Metallurgy: This U-drill body is forged from 20CrMnTi alloy steel and treated with vacuum quenching to achieve HRC 52-55. This ensures the large diameter drilling stability required for high-torque applications. The surface is protected by a professional-grade coating to prevent wear during rapid hole boring.
Superior Chip Flow: The spiral flute geometry is specifically calculated for the 22.5mm diameter to prevent chip packing. Dual internal cooling ports deliver high-pressure fluid directly to the indexable inserts, which is vital for maintaining tool life during blind hole machining.
Recommended Cutting Parameters (22.5mm 2D)
Standard starting points for General Steel. Fine-tune based on machine rigidity:
N (RPM) = (Vc × 1000) / (π × 22.5)
- Cutting Speed (Vc): 110 - 180 m/min
- Feed Rate (f): 0.08 - 0.18 mm/rev
- Requirement: High-pressure internal cooling is essential for SP series.
Compatible with SPMG07T308 Indexable Inserts. View our high-performance grades:
SHOP SPMG07 CARBIDE INSERTSGlobal Customer Feedback
"Solid Blind Hole Performance"
"I use the 22.5mm for blind boring on my CNC. It leaves a very square bottom. Much better than the WC version for this job."
- Mark T. (Canada)
"Coolant flow is perfect. No vibration during heavy cuts."
- Hans R. (Germany)
"Excellent value. Fits SPMG07 inserts from different brands perfectly."
- Fabio L. (Italy)
"Rapid hole drilling is now much easier. Great chip evacuation."
- Rajesh V. (India)
"Built to last. Arrived very quickly in the UK."
- Liam O. (UK)
SP Series Indexable Drill: Performance Analysis
- Uses SPMG square inserts: 4 usable edges for economy.
- Optimized for Blind Hole Machining (Flat bottom profile).
- Enhanced core thickness for high-speed rapid hole boring.
- Slightly higher cutting resistance than WC drills.
- Absolute requirement for center-through internal cooling.
Technical Q&A
Q: Can I use this for through-holes?
A: Yes, but it is specifically optimized for blind holes. If you only do through-holes, WC might be slightly more efficient.
Q: What inserts should I buy?
A: This body is compatible with all standard SPMG07T308 inserts.
Q: What is the benefit of the 20CrMnTi material?
A: It provides superior impact toughness and fatigue strength, preventing the tool from snapping during heavy CNC boring operations.
Machinist Tip: SP vs. WC Comparison
SP Series: Specialized for Blind Hole work. Square inserts provide a flat hole bottom and superior tool body rigidity.
WC Series: Optimized for Through Hole work. Trigon inserts offer easier cutting and slightly lower power consumption.
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.