BEYOND SP C32-3D-SD27-SP07 Indexable U-Drill Body | 27mm 3D CNC Boring Drill
Price shown is a starting point. Contact us for a precise quote based on your requirements.
BEYOND SP C32-3D-SD27-SP07
27mm 3D Heavy-Duty U-Drill | Precision Blind Hole Boring Specialist
Industrial-Grade 27mm Indexable Boring Solution
The BEYOND SP C32-3D-SD27-SP07 is a high-performance indexable insert drill engineered for industrial stability. Featuring a 27mm cutting diameter and a 3D depth ratio (81mm reach), this tool is the professional choice for blind hole machining. With integrated internal cooling and a precision spiral flute, it ensures rapid chip removal and high-efficiency CNC boring.
Decoding the Model: SP C32-3D-SD27-SP07
Metric & Imperial Technical Specifications
| Feature | Metric (mm) | Imperial (Inch) |
|---|---|---|
| Drilling Diameter (SD) | 27.0 mm | 1.063" |
| Shank Diameter (C) | 32.0 mm | 1.260" |
| Max Drilling Depth (3D) | 81.0 mm | 3.189" |
| Equivalent Model | SP-C1.260-3D-SD1.063-SP07 | |
Forged 20CrMnTi Alloy & High-Efficiency Spiral Flute
Industrial-Grade Build: Forged from premium 20CrMnTi alloy steel, this indexable drill body undergoes vacuum quenching to HRC 52-55. This provides the extreme core rigidity required for large diameter drilling and high-torque CNC environments. The surface is treated with Black Oxide for superior thermal resistance and rust prevention.
Optimized Spiral Flute: The U-drill features a wide-volume spiral flute (U-groove). When paired with dual internal cooling holes, it allows high-pressure coolant to eject chips instantly, protecting the carbide inserts from heat build-up during blind hole machining.
Recommended Cutting Parameters (27mm 3D)
Guidelines for Steel and Cast Iron applications. Adjust based on CNC rigidity:
Rotation Speed (N) = (Vc × 1000) / (π × 27)
Vc = Cutting Speed | π ≈ 3.14 | D = 27mm
- Cutting Speed (Vc): 120 - 190 m/min
- Feed Rate (f): 0.08 - 0.16 mm/rev
- Coolant: Internal coolant is essential for effective chip evacuation at 3D depth.
Pair with a high-rigidity C32 side-lock holder for best results:
VIEW COMPATIBLE C32 TOOL HOLDERSGlobal Customer Feedback
"Excellent 27mm Drill"
"Solid performance on our CNC lathe. The BEYOND body handles 45# steel effortlessly. High-precision pocket fit."
- Hans M. (Germany)
"Internal coolant is very effective. No chip jamming."
- Marek W. (Poland)
"Great value for an industrial U-drill. Using it daily."
- Pedro S. (Brazil)
"Arrived fast in the UK. Best 27mm body I've used for the price."
- Arthur L. (UK)
"Robust design, fits our Geely production line standards perfectly."
- Y. Watanabe (Japan)
SP Series Indexable Drill: Insights
- Uses 4-edge SPMG square inserts for lower cost-per-edge.
- Optimized for Blind Hole Machining (Flatter hole bottom).
- Reinforced body core provides maximum stability for 27mm diameters.
- Requires stable CNC power to drive the 27mm diameter effectively.
- Coolant pressure is critical for chip evacuation at 3D depths.
Technical Q&A
Q: Why choose SP over WC for blind hole drilling?
A: SP square inserts provide a flatter hole bottom. The SP body design also features a thicker core, which is vital for rigidity in large diameter boring.
Q: What inserts should I use with this?
A: This body is specifically designed for SPMG07T308 carbide inserts. Using BEYOND brand inserts ensures optimal tool life.
Q: Can I use this without internal coolant?
A: For 3D depths, internal coolant is highly recommended to prevent chip welding and insert failure.
Machinist Tip: SP vs. WC U-Drills
SP Series (Square): The specialist for Blind Hole (Blind Bores). Square inserts allow for a flatter profile and greater body strength for larger boring tasks.
WC Series (Trigon): Best suited for Through Hole applications. While they offer more edges, the body core is thinner, making them less ideal for heavy-duty 27mm blind holes.
Technical FAQ & Buying Guide
Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.
We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:
- For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
- For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
The optimal cutting parameters vary depending on the workpiece hardness and operation type:
- For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
- For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.
We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.
All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.