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.
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.