SRGCR2525M08 External Turning Tool Holder for RCMT Inserts – BEYOND
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SRGCR2525M08 External Turning Toolholder
Professional 25x25mm Right-Hand Shank for RCMT0803 Round Inserts
Product Overview
"Which right-hand toolholder is most effective for high-feed profiling and heavy-duty radius contouring on a 25mm CNC turret?"
The Beyond SRGCR2525M08 is a high-performance external turning toolholder specifically engineered for RCMT0803 round inserts. Round geometry provides the strongest cutting edge in the industry, as the absence of sharp corners effectively prevents edge chipping. This toolholder is the premier choice for roughing forged parts and finishing complex radii where standard diamond inserts (CNMG/DNMG) struggle with heat concentration and vibration.
Key Features
- ✔ 42CrMo Alloy Steel Body: Forged for high tensile strength to handle extreme radial cutting forces.
- ✔ Precision Screw Clamping: Secure seat design ensures zero insert movement for perfect indexability.
- ✔ Chip Thinning Advantage: Round inserts allow for much higher feed rates compared to conventional shapes.
Technical Specifications
Screw Clamp
Round Shape
90° Approach
7° Relief
Right Hand
25x25mm
150mm Len
RCMT08
| ISO Parameter | Metric (mm) | Imperial (inch) |
|---|---|---|
| Shank Size (H x W) | 25 x 25 mm | 1.00" x 1.00" |
| Total Length | 150 mm | 5.905" |
| Insert Size | RCMT 0803** | Round 5/16" |
Recommended Cutting Parameters
| Workpiece Material | Speed (Vc) | Feed Rate (f) |
|---|---|---|
| Steel (P) | 160 - 240 m/min | 0.15 - 0.45 mm/rev |
| Stainless Steel (M) | 110 - 180 m/min | 0.10 - 0.35 mm/rev |
Required Insert: RCMT 0803** / RCGT 0803**
Optimized for round carbide inserts to handle industrial heavy turning work.
View Compatible Inserts →Primary Applications
- Shaft & Axis Profiling
- Complex Radii Machining
- Forged Surface Roughing
- Valve & Flange Turning
Equipment Compatibility
Fits all standard CNC turrets with 25mm tool slots. ISO geometry ensures full compatibility with RCMT/RCGT 08 series inserts from all major brands.
Beyond Brand Advantage
Superior Edge Rigidity: Beyond toolholders utilize 42CrMo high-tensile alloy, quenched and tempered to HRC 42-45. Compared to standard carbon steel competitors, Beyond provides 30% higher damping capacity, significantly extending the life of your carbide inserts during heavy roughing.
Global User Feedback
"Perfect rigidity for profiling 4140 steel. The 25mm shank is dead straight and handles the load well."
— Mike R., USA"Halter ist sehr präzise. Die RCMT-Platten sitzen bombenfest. Top Qualität!"
— Stefan W., Germany"Ottimo prodotto. Excellent stability for radius turning on stainless shafts."
— Giovanni L., Italy"Reliable performance. Beyond is now our standard for external holders."
— Tanaka K., JapanFrequently Asked Questions
Can I use RCGT inserts for aluminum with this holder?
Yes! The SRGCR2525M08 is fully compatible with both RCMT (standard roughing) and RCGT (ground/polished) 08mm round inserts.
Is this toolholder Right-Hand or Left-Hand?
The "R" in SRGCR stands for Right-Hand. Please check your machine's turret configuration before purchasing.
Why use a round insert for profiling?
Round inserts have the strongest geometry, preventing edge chipping and providing superior surface finish at high feed rates on radii.
Material Pro Tip: High-Feed Radius Machining
When using the SRGCR2525M08, the actual chip thickness is less than the feed per revolution. For radius finishing, you can increase your feed rate by up to 30% compared to conventional tools, significantly reducing cycle times while maintaining a perfect finish.
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.