BEYOND SRACR2525M08 CNC External Turning Tool Holder - 25x25mm Shank
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BEYOND SRACR2525M08 External Turning Tool Holder
Precision Profiling for RCMT 0803 Round Inserts
Product Overview
"Which tool holder is best for high-stability profiling and heavy metal removal using RCMT round inserts?"
The BEYOND SRACR2525M08 is an industrial-grade external turning tool holder specifically engineered for RCMT 0803 round inserts. Unlike standard rhombic inserts, the round geometry of the RCMT provides the strongest cutting edge available, making this holder the premier choice for complex contours, profiling, and heavy-duty roughing. The 25x25mm shank provides the necessary rigidity to dampen vibrations, ensuring a superior surface finish on steel, stainless steel, and heat-resistant alloys.
Key Features
Unmatched Rigidity
Forged from high-tensile 40Cr alloy steel and vacuum-hardened to HRC 42-45 to withstand extreme cutting forces.
Profiling Versatility
The R-style round insert seating allows for multi-directional cutting, perfect for radius turning and deep profiling.
S-Type Screw Clamping
Ensures the RCMT08 insert is locked securely with zero lateral movement, reducing micro-chatter and extending insert life.
Technical Specifications
| Feature | Metric (ISO) | Imperial (ANSI) |
|---|---|---|
| Shank Size | 25 x 25 mm | 1.0" x 1.0" |
| Total Length | 150 mm | 5.91" |
| Compatible Insert | RCMT 0803MO | RCMT 2.5 |
Recommended Cutting Parameters:
| Material | Speed (Vc) | Feed (f) |
|---|---|---|
| Steel (P) | 140 - 260 m/min | 0.15 - 0.45 mm/rev |
| Stainless (M) | 110 - 180 m/min | 0.12 - 0.35 mm/rev |
Applications
- Heavy roughing and profiling of forged shafts.
- Machining of large radius grooves and fillets.
- Turbine blade profiling and complex contour turning.
- Optimized for Carbon Steel, Alloy Steel, and Stainless Steel.
Compatibility
Designed for integration with 25mm CNC Turrets and manual lathes. Fully compatible with standard ISO RCMT 0803 series round inserts from BEYOND, Sandvik, and Tungaloy.
Verified Global Feedback
"Profiling Master"
Mark R., USA
The rigidity on this 25mm shank is incredible. Profiling hardened steel became 20% faster.
"Top Rigidity"
Hans W., Germany
Beyond tools have consistent quality. This holder dampens vibration better than my OEM holders.
"Excellent Value"
Luca M., Italy
Great performance for the price. The RCMT0803 inserts fit perfectly without any movement.
"Reliable for High Volume"
Kenji Y., Japan
Holds up to thermal deformation under continuous high-speed production. A staple in our shop.
Expert FAQ
Q: Why use RCMT round inserts for this holder?
A: Round inserts distribute heat and cutting forces across a larger surface area, preventing thermal cracking and providing a much stronger edge for profiling compared to 80° or 55° rhombic inserts.
Q: Does the holder come with a wrench?
A: Yes, each SRACR2525M08 includes a high-tensile clamp screw and the correct Torx wrench for easy installation.
Q: Can I use this for stainless steel?
A: Absolutely. Pair it with a BEYOND BY8020 or similar PVD coated grade for optimal performance in stainless steel applications.
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.