BEYOND SP C40-2D-SD48-SP14 Indexable U-Drill Body | 48mm 2D CNC Boring Drill
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BEYOND SP C40-2D-SD48-SP14
48mm 2D Heavy-Duty U-Drill | Large Diameter Blind Hole Specialist
Industrial-Grade 48mm Indexable Boring Solution
The BEYOND SP C40-2D-SD48-SP14 is a professional-grade indexable insert drill designed for high-torque CNC boring in heavy-duty manufacturing. With a 48mm cutting diameter and a 2D depth ratio (96mm reach), this tool is a dedicated blind hole machining specialist. Featuring dual internal cooling ports and a reinforced spiral flute, it delivers exceptional stability and chip management for large-diameter drilling in steel and alloys.
Decoding the Model: SP C40-2D-SD48-SP14
Metric & Imperial Technical Specifications
| Feature | Metric (mm) | Imperial (Inch) |
|---|---|---|
| Drilling Diameter (SD) | 48.0 mm | 1.889" |
| Shank Diameter (C) | 40.0 mm | 1.574" |
| Max Drilling Depth (2D) | 96.0 mm | 3.779" |
| Equivalent Model | SP-C1.57-2D-SD1.89-SP14 | |
High-Strength 20CrMnTi Alloy & Rapid-Flow Spiral Flutes
Superior Material: This indexable drill body is forged from premium 20CrMnTi alloy steel. Through advanced vacuum quenching to HRC 52-55, the body provides the extreme core strength needed for large diameter drilling. The Black Oxide finish adds a layer of protection against corrosion and friction-induced heat during rapid hole boring.
The Spiral Flute: Our U-drill uses a precision-ground spiral flute (U-groove) that is wider than standard drills to handle the massive chip load of a 48mm bore. Integrated internal cooling holes flush these chips out immediately, which is critical for maintaining surface quality in blind hole machining.
Recommended Cutting Parameters (48mm 2D)
General guidelines for Carbon and Alloy Steel. Ensure your machine has enough torque for this diameter:
Rotation Speed (N) = (Vc × 1000) / (π × 48)
Vc = Cutting Speed | π ≈ 3.14 | D = 48mm
- Cutting Speed (Vc): 100 - 180 m/min
- Feed Rate (f): 0.08 - 0.15 mm/rev
- Coolant: Center-through internal cooling is mandatory for large-diameter 2D bores.
Pair with a heavy-duty BEYOND Side-Lock C40 Holder for maximum stability:
SHOP COMPATIBLE C40 TOOL HOLDERSVerified Global Reviews
"Massive Performance"
"I was worried about vibration at 48mm, but this tool body is incredibly rigid. The blind hole finish is perfect."
- David K. (USA)
"Excellent chip evacuation. The spiral flute is designed for high-volume removal."
- Lars H. (Sweden)
"Great value for an industrial-sized drill. Using it on our CNC lathe daily."
- Sergio V. (Mexico)
"Standard SPMG14 inserts fit perfectly with no movement."
- P. Dubois (France)
"BEYOND tools never disappoint. Rigidity is on par with premium brands."
- R. Singh (India)
SP Series Indexable Drill: Advantages & Considerations
- Uses SPMG square inserts with 4 cutting edges—maximum economy.
- Designed specifically for Blind Hole Machining (Flatter hole bottom).
- Increased core thickness for high stability during 48mm boring.
- High horsepower machine requirement due to the 48mm tool surface.
- Needs high coolant pressure to ensure chips don't recycle in the bore.
Technical Q&A
Q: Why is SP preferred over WC for 48mm blind bores?
A: SP square inserts provide a flatter profile at the hole bottom. Additionally, the SP body core is structurally thicker at this diameter, significantly reducing vibration compared to WC designs.
Q: What insert size does this use?
A: This model uses standard SPMG140512 carbide inserts. We offer various grades for different metals in our store.
Q: What does the 2D signify?
A: 2D indicates the drilling depth capacity is 2x the diameter. For this 48mm drill, you can bore up to 96mm deep.
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 edges but the body core is thinner, making it less rigid for 48mm 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.