BEYOND SP C40-3D-SD49-SP14 Indexable U-Drill Body | 49mm 3D CNC Boring Drill
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BEYOND SP C40-3D-SD49-SP14
49mm 3D Heavy-Duty U-Drill | Large Diameter Blind Hole Boring Specialist
Industrial-Grade 49mm Indexable Boring Solution
The BEYOND SP C40-3D-SD49-SP14 is a professional-grade indexable insert drill engineered for maximum stability in large diameter boring operations. With a 49mm cutting diameter and a 3D depth ratio (147mm reach), this tool is the primary choice for blind hole machining. Featuring internal cooling and a precision-engineered spiral flute, it ensures rapid chip evacuation and superior surface finish on heavy-duty CNC lathes.
Decoding the Model: SP C40-3D-SD49-SP14
Metric & Imperial Technical Specifications
| Feature | Metric (mm) | Imperial (Inch) |
|---|---|---|
| Drilling Diameter (SD) | 49.0 mm | 1.929" |
| Shank Diameter (C) | 40.0 mm | 1.575" |
| Max Drilling Depth (3D) | 147.0 mm | 5.787" |
| Equivalent Model | SP-C1.575-3D-SD1.929-SP14 | |
Reinforced 20CrMnTi Alloy & High-Efficiency Flute
Industrial-Grade Build: This indexable drill body is forged from premium 20CrMnTi alloy steel. Through a vacuum quenching and hardening process (HRC 52-55), it provides the extreme rigidity needed for large diameter drilling, preventing chatter and ensuring a high-quality surface finish in heavy-duty CNC applications.
Optimized Spiral Flute: The U-drill features an optimized spiral flute (U-groove) design with wide chip pockets. Combined with dual internal cooling holes, it allows high-pressure coolant to flush metal chips out of 147mm deep bores instantly, protecting the carbide inserts from thermal failure during blind hole machining.
Recommended Cutting Parameters (49mm 3D)
Suggested for Carbon Steel (HB < 250). Adjust based on machine torque:
- Cutting Speed (Vc): 100 - 150 m/min
- Feed Rate (f): 0.08 - 0.15 mm/rev
- Rotation Speed (N): Calculated as $$N = \frac{Vc \times 1000}{\pi \times 49}$$
- Coolant: High-pressure internal cooling is mandatory for 49mm 3D depth.
Looking for a compatible side-lock holder for the 40mm shank?
SHOP COMPATIBLE C40 TOOL HOLDERSVerified Customer Reviews
"Massive Power"
"Drilling 49mm holes in 4140 steel. The body is extremely rigid and handles the torque effortlessly. Fast shipping to Germany."
- Robert H. (Germany)
"Chips Clear Instantly"
"Internal cooling is a lifesaver for 3D depth. No chip packing even in deep blind bores."
- Marek W. (Poland)
"Excellent price-to-performance ratio. Pocket for SPMG14 is precision machined. Using this in our Brazil facility."
- Pedro S. (Brazil)
"The SP series provides a much flatter bottom for our hydraulic manifolds. Very satisfied."
- Arthur L. (UK)
"Consistent quality from BEYOND. Our 49mm production line runs smoother with these tool bodies."
- Y. Watanabe (Japan)
SP Series Indexable Drill: Advantages & Considerations
- Uses 4-edge SPMG square inserts for lower cost-per-edge.
- Optimized for Blind Hole Machining (Flatter hole bottom).
- Massive 40mm shank provides maximum torque transmission.
- Requires high-power machine due to 49mm diameter load.
- Absolute dependency on internal coolant flow for 147mm reach.
Technical Q&A
Q: Why is SP better than WC for blind holes?
A: SP square inserts provide a flatter bottom profile. Additionally, the tool body core is thicker and more rigid, which is essential for large diameter boring.
Q: Does this include the inserts?
A: No, this is for the tool body only. It is compatible with SPMG140512 carbide inserts.
Q: What is the benefit of the Side-Lock (C40) shank?
A: The 40mm straight shank allows for massive clamping force, preventing tool slip or rotation under high torque.
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 for large diameter machining.
WC Series (Trigon): Primarily used for Through Hole applications. WC inserts offer more cutting edges but the body core is thinner, making it less rigid for 49mm heavy-duty 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.