BEYOND SP C25-5D-SD14-SP05 Indexable U-Drill Body | 14mm 5D CNC Deep Hole Drill
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BEYOND SP C25-5D-SD14-SP05
14mm 5D Indexable U-Drill | Precision Blind Hole Boring Specialist
Industrial 14mm Deep Hole Boring Specialist
The BEYOND SP C25-5D-SD14-SP05 is a professional indexable insert drill engineered for extreme stability in deep hole boring. With a 14mm cutting diameter and a 5D depth ratio (70mm reach), this tool is the primary choice for blind hole machining. Featuring internal cooling and a high-efficiency spiral flute, it ensures rapid chip evacuation and superior surface finish on CNC lathes. This rapid drill is designed for high-feed operations in steel, alloy, and cast iron.
Decoding the Model: SP C25-5D-SD14-SP05
Metric & Imperial Technical Specifications
| Feature | Metric (mm) | Imperial (Inch) |
|---|---|---|
| Drilling Diameter (SD) | 14.0 mm | 0.551" |
| Shank Diameter (C) | 25.0 mm | 0.984" |
| Max Drilling Depth (5D) | 70.0 mm | 2.756" |
| Imperial Model Equivalent | SP-C1.0-5D-SD0.551-SP05 | |
Premium 20CrMnTi Alloy & Advanced Spiral Flute
Superior Material Composition: This U-drill CNC tool body is manufactured from 20CrMnTi alloy steel. Through vacuum quenching and specialized tempering, the body reaches a surface hardness of HRC 50-55. This ensures the indexable drill resists deformation under high-pressure deep hole drilling while maintaining a shock-absorbing core for interrupted cuts.
High-Performance U-Groove: The spiral flute is precision-ground with a wide-opening U-shape. This geometry, coupled with internal coolant holes, prevents chip clogging—a common failure in 5D deep hole boring. By optimizing the chip evacuation path, it significantly extends the life of your carbide inserts.
Recommended Cutting Parameters (14mm 5D)
Optimized for Steel (HB < 250). Please adjust based on your CNC machine's rigidity:
- Cutting Speed (Vc): 120 - 180 m/min
- Feed Rate (f): 0.05 - 0.10 mm/rev
- Rotation Speed (N): Calculated as $$N = \frac{Vc \times 1000}{\pi \times 14}$$
- Coolant Requirement: High-pressure internal cooling (Center water) is 100% required for 5D depth.
Beyond SP Series: Performance Analysis
- 4-edge SPMG square inserts offer superior economy (4 usable corners).
- Optimized for Blind Hole Machining (flatter hole bottom).
- Incredible body rigidity for high-precision 5D deep hole applications.
- Higher cutting resistance than WC drills; requires stable spindle power.
- Must use high-pressure coolant to avoid chip accumulation at 70mm depth.
Need a compatible holder for the 25mm shank?
VIEW COMPATIBLE C25 SIDE-LOCK HOLDERSWhat Our Global Clients Say
"Top Tier for Blind Holes"
"I've switched all my blind hole boring to BEYOND SP drills. The flatness at the bottom is perfect and the 5D reach is rock solid."
- Mark R. (USA)
"Strong Tool Body"
"The alloy steel body is clearly heat-treated well. No vibration even at high feeds."
- Hans S. (Germany)
"Excellent price-to-performance ratio. Best 14mm U-drill I've found."
- Kenji T. (Japan)
"Internal cooling works great. Chips come out cleanly."
- Felipe M. (Brazil)
"Great quality from China. Shipping was fast."
- David L. (UK)
Product FAQ
Q: Does this include the SPMG inserts?
A: No, this is the tool body only. You will need to purchase SPMG050204 inserts separately.
Q: Can I use this for through holes?
A: While the SP series is optimized for blind hole machining, it can perform through-holes. However, for exclusive through-hole tasks, we recommend our WC series.
Q: What is the maximum drilling depth for this 14mm model?
A: As a 5D model, it has an effective drilling reach of 70mm.
Machinist Tip: Choosing the Right U-Drill
SP Series (Square Inserts): The best choice for Blind Holes. Square inserts (SPMG) provide a flatter hole bottom and have a thicker drill core for maximum rigidity in deep boring (5D).
WC Series (Trigon Inserts): Specifically designed for Through Holes. The 3-sided inserts (WCMX/WCMT) reduce cutting force, but the body core is thinner than the SP series.
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.