BEYOND SP C32-4D-SD34-SP11 Indexable U-Drill Body | 34mm 4D CNC Deep Hole Drill
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BEYOND SP C32-4D-SD34-SP11
34mm 4D Heavy-Duty U-Drill | Precision Blind Hole Boring Specialist
High-Performance 34mm Deep Hole Boring Solution
The BEYOND SP C32-4D-SD34-SP11 is a professional indexable insert drill designed for high-stability deep hole boring. Featuring a 34mm cutting diameter and a 4D depth-to-diameter ratio (136mm reach), this tool is the industry standard for blind hole machining. Engineered with internal cooling and a specialized spiral flute, it ensures efficient chip evacuation and superior surface finishes on CNC lathes and machining centers.
Decoding the Model: SP C32-4D-SD34-SP11
Metric & Imperial Technical Specifications
| Feature | Metric (mm) | Imperial (Inch) |
|---|---|---|
| Drilling Diameter (SD) | 34.0 mm | 1.338" |
| Shank Diameter (C) | 32.0 mm | 1.260" |
| Max Drilling Depth (4D) | 136.0 mm | 5.354" |
| Equivalent Model | SP-C1.25-4D-SD1.338-SP11 | |
Premium 20CrMnTi Alloy & Advanced Chip Flute
Superior Tool Body Material: This indexable drill body is crafted from high-grade 20CrMnTi alloy steel. Utilizing a vacuum-quenched hardening process (HRC 52-55), the tool exhibits exceptional wear resistance and anti-deformation properties during large diameter drilling. The shock-resistant core is specifically optimized for handling interrupted cuts.
High-Efficiency Spiral Flute (U-Groove): The U-groove geometry is engineered for maximum volume chip evacuation. In conjunction with dual internal cooling holes, it allows high-pressure coolant to flush metal chips out of the 136mm bore instantly, preventing heat buildup and protecting the carbide inserts from thermal stress.
Recommended Cutting Parameters (34mm 4D)
Parameters for Carbon Steel (HB < 250). Please adjust according to your CNC machine rigidity:
- Cutting Speed (Vc): 110 - 180 m/min
- Feed Rate (f): 0.08 - 0.18 mm/rev
- Rotation Speed (N): Calculated as $$N = \frac{Vc \times 1000}{\pi \times 34}$$
- Coolant: High-pressure internal cooling is mandatory for 4D depth to ensure chip clearance.
Require a Side-Lock Tool Holder for the 32mm Shank?
VIEW COMPATIBLE C32 HOLDERSCustomer Success Stories
"Incredible Stability"
"I’ve used many brands, but the BEYOND 34mm body has zero chatter at full 4D depth. Highly recommended."
- James L. (USA)
"Efficient Chip Flow"
"The spiral flute works great. No chip packing even in gummy materials. Fast delivery to Europe."
- Marc V. (Belgium)
"Top quality 20CrMnTi steel. Very durable. My go-to indexable drill now."
- Ricardo M. (Mexico)
"Perfect for blind bores. The SPMG11 inserts sit perfectly. No runout."
- Henry K. (Australia)
"Best price-to-performance ratio in the market today."
- Park J. (South Korea)
Why Choose the SP Series Indexable Drill?
- Uses SPMG square inserts: 4 usable edges for maximum economy.
- Optimized for Blind Hole Boring: Provides a flatter hole base.
- Heavier tool core: More rigid than WC models for deep 4D applications.
- Slightly higher cutting resistance than WC models.
- Requires stable machine power for the 34mm large diameter cut.
Frequently Asked Questions
Q: Can I use this for through holes?
A: Yes, but the SP series is specifically optimized for blind holes. If you only perform through-hole drilling, the WC series may offer faster feeds.
Q: What inserts should I buy with this?
A: This tool is designed specifically for SPMG110408 inserts.
Q: Is internal coolant necessary?
A: For a 4D depth (136mm), internal coolant is highly recommended to prevent chip buildup and tool damage.
Machinist Tip: Choosing SP vs. WC
SP (Square Inserts): The best choice for Blind Bores. The square insert geometry provides a flatter bottom and the tool body is reinforced for high-rigidity boring machining.
WC (Trigon Inserts): Specialized for Through Holes. It features a thinner core for faster chip flow but lacks the rigidity of the SP for high-precision bottom finishes.
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.