BEYOND SP C40-3D-SD42-SP14 Indexable U-Drill Body | 42mm 3D CNC Boring Drill
Free shipping on all orders.
Check compatibility: Confirm the model and dimensions before ordering.
Need help choosing? Contact us before ordering.
💰 Bulk savings 2-9 pcs · 6% OFF | 10+ pcs · 12% OFF
BEYOND SP C40-3D-SD42-SP14
42mm 3D Heavy-Duty U-Drill | High-Rigidity Blind Hole Specialist
Industrial-Grade 42mm Indexable Boring Solution
The BEYOND SP C40-3D-SD42-SP14 is a professional indexable insert drill designed for high-torque large diameter boring. With a 42mm cutting diameter and a 3D depth ratio (126mm reach), this tool is the industry standard for blind hole machining. Featuring precision-engineered internal cooling and a robust spiral flute, it ensures efficient chip evacuation and exceptional surface finish on CNC lathes and machining centers.
Decoding the Model: SP C40-3D-SD42-SP14
Metric & Imperial Technical Specifications
| Feature | Metric (mm) | Imperial (Inch) |
|---|---|---|
| Drilling Diameter (SD) | 42.0 mm | 1.653" |
| Shank Diameter (C) | 40.0 mm | 1.575" |
| Max Drilling Depth (3D) | 126.0 mm | 4.961" |
| Equivalent Model | SP-C1.575-3D-SD1.653-SP14 | |
High-Performance 20CrMnTi Build & Spiral Flute Efficiency
Durable Body Material: This indexable drill body is manufactured from high-strength 20CrMnTi alloy steel. The surface is treated with a specialized Black Oxide hardening process (HRC 52-55), providing the wear resistance and toughness required for deep hole drilling in hardened steels.
Optimized U-Slot Design: The 42mm U-drill features a large-volume spiral flute. When coupled with the dual internal cooling holes, it allows for high-pressure lubricant flow to discharge chips continuously, preventing "chip packing" even during large diameter boring in 3D depth applications.
Recommended Cutting Parameters (42mm 3D)
Optimized for Carbon Steel and Alloy Steel. Adjust based on machine horsepower:
- Cutting Speed (Vc): 110 - 180 m/min
- Feed Rate (f): 0.08 - 0.16 mm/rev
- Rotation Speed (N): Calculated as $$N = \frac{Vc \times 1000}{\pi \times 42}$$
- Coolant Requirement: High-pressure internal cooling is essential for heat dissipation.
Need a heavy-duty side-lock holder for this 40mm shank?
SHOP COMPATIBLE C40 TOOL HOLDERSVerified Customer Reviews
"Solid 42mm performance"
"Switched from a competitor to BEYOND. The core rigidity is noticeably higher. Perfect for our blind hole boring projects."
- Robert H. (Germany)
"Highly Efficient"
"Fastest way to move material. The 3D depth holds its tolerance well."
- Marek W. (Poland)
"Precision is 10/10. SPMG14 inserts fit snugly and give a very flat bottom."
- Pedro S. (Brazil)
"Fast delivery and great industrial quality. A professional tool for high-volume shops."
- Arthur L. (UK)
"Runs smoothly on our Fanuc lathes. Very reliable supplier."
- Y. Watanabe (Japan)
SP Series Indexable Drill: Advantages & Considerations
- Uses 4 cutting edges (SPMG), reducing cost per hole.
- Optimized for Blind Hole Machining (Flatter bottom).
- Thick core provides higher rigidity for 42mm diameter torque.
- Needs significant machine horsepower to drive a 42mm drill.
- Coolant pressure must be maintained for chip clearance.
Frequently Asked Questions
Q: What is the primary difference between SP and WC U-drills?
A: SP models use square inserts and are designed for blind holes because they leave a flatter bottom. WC models use trigon inserts and are better for through holes.
Q: Do I need to buy special bolts?
A: No, the drill comes with the necessary Torx screws and wrench. You only need to purchase SPMG140512 inserts.
Q: Can I use this for off-center drilling?
A: Yes, indexable drills can handle slight radial offsets to adjust hole size, provided the setup is rigid.
Expert Tip: SP vs. WC for 42mm Drilling
SP Series: Specialist for Blind Bores. The square insert geometry provides superior stability in large diameter tasks, resulting in higher precision for bottom-end machining.
WC Series: Specialist for Through Hole applications. While WC offers more edges per insert, the tool body core for WC is typically thinner, making SP the preferred choice for heavy 42mm boring operations.
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.