BEYOND SP C20-2D-SD16-SP06 Indexable U-Drill Body | 16mm 2D CNC Boring Drill
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BEYOND SP C20-2D-SD16-SP06
16mm 2D Heavy-Duty U-Drill | Precision Blind Hole Boring Specialist
Industrial 16mm Indexable Boring Solution
The BEYOND SP C20-2D-SD16-SP06 is a professional-grade indexable insert drill engineered for high-speed CNC boring and rapid hole drilling. Featuring a 16mm cutting diameter and a 2D depth ratio (32mm reach), this tool is the primary choice for blind hole machining. Equipped with internal cooling and optimized spiral flutes, it ensures superior chip evacuation in carbon steel, alloy steel, and stainless steel.
Decoding the Model: SP C20-2D-SD16-SP06
Metric & Imperial Technical Specifications
| Feature | Metric (mm) | Imperial (Inch) |
|---|---|---|
| Drilling Diameter (SD) | 16.0 mm | 0.629" |
| Shank Diameter (C) | 20.0 mm | 0.787" |
| Max Drilling Depth (2D) | 32.0 mm | 1.259" |
| Equivalent Model | SP-C0.75-2D-SD0.625-SP06 | |
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 16mm 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 (16mm 2D)
Standard starting points for General Steel. Fine-tune based on machine rigidity:
N (RPM) = (Vc × 1000) / (π × 16)
- Cutting Speed (Vc): 100 - 180 m/min
- Feed Rate (f): 0.05 - 0.12 mm/rev
- Requirement: High-pressure internal cooling is essential for SP series chip flushing.
Maximize precision with our high-performance SPMG06 Carbide Inserts:
SHOP SPMG06 CARBIDE INSERTSVerified Customer Feedback
"The Blind Hole Specialist"
"Using this 16mm SP drill for blind bores. Much flatter bottom than my previous trigon drills."
- Mike T. (USA)
"Excellent chip evacuation. The internal coolant makes a massive difference."
- Gunther M. (Germany)
"Top quality. Beyond tools are as good as the big brands."
- Luca R. (Italy)
"Tool performs perfectly on my CNC lathe."
- Ahmed H. (UAE)
"Solid construction. Great value."
- Steve B. (Australia)
SP Series Indexable Drill: Advantages & Considerations
- Uses 4-edge SPMG square inserts for lower cost-per-edge.
- Optimized for Blind Hole Machining (Creates a flat-bottom profile).
- Thicker body core provides maximum stability for 16mm drilling.
- Higher cutting torque requirement than WC trigon drills.
- Performance is 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. The SP body is also designed with a thicker core, which is essential for stability in large diameter boring.
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.
Q: What is the maximum depth for this 2D drill?
A: The 2D indicates 2x the diameter. For a 16mm drill, the maximum effective drilling depth is 32mm.
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.
WC Series (Trigon): Primarily used for Through Hole applications. WC inserts offer more edges but the body core is thinner, making it less rigid for 16mm 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.