BEYOND SP C20-2D-SD15-SP05 Indexable U-Drill Body | 15mm 2D CNC Boring Drill
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BEYOND SP C20-2D-SD15-SP05
15mm 2D Heavy-Duty U-Drill | Precision Blind Hole Boring Specialist
High-Performance 15mm Indexable Boring Solution
The BEYOND SP C20-2D-SD15-SP05 is an industrial-grade indexable insert drill specifically engineered for high-speed CNC boring and rapid hole drilling. Featuring a 15mm cutting diameter and a 2D depth ratio (30mm effective reach), this tool is the specialist choice for blind hole machining. Built with internal cooling channels and high-rigidity spiral flutes, it ensures superior chip evacuation and surface finish in tough alloys.
Decoding the Model: SP C20-2D-SD15-SP05
Metric & Imperial Technical Specifications
| Feature | Metric (mm) | Imperial (Inch) |
|---|---|---|
| Drilling Diameter (SD) | 15.0 mm | 0.590" |
| Shank Diameter (C) | 20.0 mm | 0.787" |
| Max Drilling Depth (2D) | 30.0 mm | 1.181" |
| Equivalent Model | SP-C0.75-2D-SD0.590-SP05 | |
Premium 20CrMnTi Alloy & High-Efficiency Flute Design
Industrial Build: Our U-drill body is forged from premium 20CrMnTi alloy steel, vacuum quenched to HRC 52-55. This metallurgical composition provides the high rigidity required for large diameter drilling and prevents tool deflection. The surface is carbonitrided to enhance thermal wear resistance during rapid hole boring cycles.
Precision Spiral Flutes: The tool features a high-volume spiral flute (U-slot) engineered specifically for the 15mm bore. Dual internal cooling holes deliver high-pressure fluid directly to the cutting edge—an essential feature for blind hole machining to ensure chips are flushed out efficiently.
Recommended Cutting Parameters (15mm 2D)
Starting values for General Carbon Steel. Adjust based on machine rigidity:
Rotation Speed (N) = (Vc × 1000) / (π × 15)
- Cutting Speed (Vc): 100 - 180 m/min
- Feed Rate (f): 0.04 - 0.10 mm/rev
- Coolant: Center-through internal cooling is mandatory for chip evacuation.
Maximize performance with our high-precision SPMG05 Carbide Inserts:
SHOP SPMG05 CARBIDE INSERTSVerified Customer Feedback
"The Blind Hole Specialist"
"Switched from WC to this SP drill for blind bores. The bottom finish is remarkably flat. Body is very rigid."
- Mike T. (USA)
"Excellent chip evacuation. The internal coolant makes a massive difference."
- Gunther M. (Germany)
"Top quality finish. Beyond tools are as good as the big brands."
- Luca R. (Italy)
"Fast shipping to the UAE. 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).
- High body core thickness for maximum stability during boring.
- Higher cutting torque requirement than WC trigon drills.
- Relies on high coolant pressure for chip flushing in deep holes.
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 SPMG05 inserts?
A: It is designed for standard SPMG050204 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 15mm drill, the maximum effective drilling depth is 30mm.
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 15mm tasks.
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.