SRACL2525M10 External Turning Tool Holder for RCMT Inserts – BEYOND
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SRACL2525M10 External Turning Toolholder
Professional 25x25mm Left-Hand Shank for RCMT1003 Round Inserts
Product Overview
"Which left-hand 25mm toolholder provides the best balance of clearance and rigidity for complex radius profiling with 10mm round inserts?"
The Beyond SRACL2525M10 is a specialized industrial toolholder optimized for RCMT1003 round inserts. While 12mm inserts are common for heavy roughing, the 10mm round geometry (R-type) offers superior clearance for intricate contouring while maintaining the inherent edge strength of a circular profile. This 25x25mm shank model is built to provide high harmonic stability, making it the premier choice for profiling cycles in medium-sized workpieces where surface finish and dimensional accuracy are critical.
Key Features
- ✔ Quenched 42CrMo Alloy Steel: Precision forged and heat-treated to HRC 42-45 for extreme toughness.
- ✔ S-Type Screw Clamping: Features a streamlined head design for better chip flow and high-security insert locking.
- ✔ Vibration Damping Tech: The Beyond material structure absorbs micro-harmonics, extending carbide insert life by up to 25%.
Technical Specifications
Screw Clamp
Round Shape
90° Approach
7° Relief
Left Hand
25x25mm
150mm Len
RCMT10
| ISO Parameter | Metric (mm) | Imperial (inch) |
|---|---|---|
| Shank Size (H x W) | 25 x 25 mm | 1.00" x 1.00" |
| Total Length | 150 mm | 5.90" |
| Insert Size | RCMT 1003** | Round 3/8" |
Recommended Cutting Parameters
| Material Group | Speed (Vc) | Feed Rate (f) |
|---|---|---|
| Carbon Steel (P) | 180 - 280 m/min | 0.15 - 0.45 mm/rev |
| Stainless (M) | 130 - 190 m/min | 0.12 - 0.35 mm/rev |
Required Insert: RCMT 1003** / RCGT 1003**
Specifically designed for 10mm round inserts for medium-duty profiling.
Shop RCMT10 Inserts →Primary Applications
- Radius Profiling of Shaft Components
- Medium Roughing to Finishing Cycles
- Machining Fillets and Large Chamfers
- External Contouring of Cast and Forged Parts
Compatibility
Fits all standard CNC tool turrets designed for 25mm (1") shanks. Fully compatible with ISO standard RCMT 10 series inserts from Beyond, Sandvik, and Kyocera.
Beyond Brand Material Comparison
Superior Surface Finish: While entry-level toolholders focus only on shank dimensions, Beyond utilizes 42CrMo steel with controlled quenching. This creates a dense internal grain structure that damping vibrations 30% more effectively than generic C45 steel holders. When using a 10mm round insert, this stability is the difference between micro-chatter and a mirror-like finish on your workpiece.
Verified B2B Reviews
"Great stability for a 25mm shank. The RCMT10 insert gives much better clearance for our specific profiling work than the 12mm versions."
— Robert D., USA"Hervorragende Qualität. Der Plattensitz ist extrem präzise. Schnelle Lieferung nach Deutschland."
— Dieter W., Germany"Ottimo prodotto. La rigidità è superiore rispetto ad altri marchi economici. Consigliato per lavorazioni pesanti."
— Marco V., Italy"Consistent performance. Accuracy across batches is reliable for our production line."
— Kenji S., JapanFrequently Asked Questions
Can I use RCGT inserts with this holder?
Yes! The SRACL2525M10 is fully compatible with both RCMT (standard) and RCGT (ground/polished for aluminum) 10mm round inserts.
What is the advantage of the 10mm insert over the 12mm?
The 10mm insert offers a smaller radius footprint, which is better for intricate contouring and provides more clearance in tight profiling areas without sacrificing the edge strength of the round geometry.
Does it include the screw and wrench?
Yes, every Beyond toolholder comes with a high-tensile clamping screw and the corresponding Torx wrench.
Material Pro Tip: Round Edge Strength
When roughing with the SRACL2525M10, the round insert allows for significantly higher feed rates. Because there is no "tip" to break, you can increase your depth of cut to maximize machine output while maintaining thermal stability.
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.