SRDCN2525M06 External Turning Tool Holder for RCMT Inserts – BEYOND
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SRDCN2525M06 External Turning Toolholder
Heavy-Duty 25x25mm Neutral Shank for RCMT0602 Round Inserts
Product Overview
"Which heavy-duty toolholder provides the highest stability for complex profiling using small 6mm round inserts?"
The Beyond SRDCN2525M06 is a high-rigidity external turning toolholder designed for RCMT0602 round inserts. The 25x25mm shank provides a massive foundation for the small 6mm insert, virtually eliminating vibration during high-speed profiling. Its neutral orientation allows for symmetrical approach angles, making it perfect for machining complex contours from both directions. By utilizing round inserts, this holder excels in dissipating heat and maintaining edge strength in difficult materials like stainless steel and high-temp alloys.
Key Features
- ✔ 42CrMo Alloy Steel Body: Forged for maximum tensile strength and impact toughness (HRC 42-45).
- ✔ High-Precision Pocket: Specifically CNC-machined to hold RCMT06 inserts with zero play, ensuring repeatability.
- ✔ Neutral Symmetry: Eliminates the need for multiple toolholders by performing left, right, and face turning.
Technical Specifications
Screw Clamp
Round Shape
Neutral/45°
7° Relief
Neutral Hand
25x25mm
150mm Len
RCMT06
| ISO Parameter | Metric (mm) | Imperial (inch) |
|---|---|---|
| Shank Size (H x W) | 25 x 25 mm | 1.0" x 1.0" |
| Total Length | 150 mm | 5.91" |
| Compatible Insert | RCMT 0602** | Round 1/4" |
Recommended Cutting Parameters
| Material Group | Speed (Vc) | Feed Rate (f) |
|---|---|---|
| P (Steel) | 150 - 260 m/min | 0.10 - 0.30 mm/rev |
| M (Stainless) | 100 - 170 m/min | 0.08 - 0.25 mm/rev |
Required Insert: RCMT 0602** / RCGT 0602**
Optimized for 6mm round inserts to achieve high-precision profiling on large workpieces.
View Compatible Inserts →Common Applications
- Heavy-Duty Shaft Profiling
- Complex Contouring on Large Lathes
- Turbine Blade Base Machining
- Radius Transition in Heat-Treated Parts
Compatibility
Compatible with all CNC turrets using 25mm tool holders. Standard ISO geometry ensures compatibility with RCMT 06 series inserts from Beyond, OYYU, and other global tool brands.
Beyond Brand Material Comparison
The Beyond Difference: While standard holders use C45 steel, Beyond toolholders utilize premium 42CrMo steel. This alloy offers significantly higher fatigue resistance and vibration damping. For the SRDCN2525M06, this means the massive 25mm shank absorbs the harmonics of the 6mm insert, resulting in a glass-like surface finish and extended carbide life.
Global Customer Feedback
"Massive shank for a small insert. Zero vibration even at high Vc. Best profiling tool in my shop."
— Robert D., USA"Hervorragende Qualität. Der Plattensitz ist extrem präzise. Schnelle Lieferung nach Deutschland."
— Dieter W., Germany"Excellent toolholder for my Mori Seiki. The finish on stainless is superb."
— Marco V., Italy"Very reliable. Accuracy is equal to top-tier Japanese brands but at a better price point."
— Kenji S., JapanFrequently Asked Questions
Can I use RCGT inserts for non-ferrous metals?
Yes! The SRDCN2525M06 is fully compatible with both RCMT (standard) and RCGT (ground and polished for aluminum/copper) 6mm inserts.
What are the advantages of a round insert?
Round inserts have the strongest cutting edge. They allow for multiple indexing points and vary the chip thickness as the depth of cut changes, which is ideal for profiling.
Is the clamping screw and wrench included?
Yes, all Beyond toolholders are shipped with a high-tensile screw and the corresponding Torx wrench.
Material Pro Tip: High-Efficiency Contouring
When using the SRDCN2525M06, the round insert allows for much higher feed rates because the "chip thinning" effect is maximized on radii. For roughing applications, increase your feed by 15-20% compared to standard diamond tools to significantly reduce cycle times.
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.