Mitsubishi RCMX1003MO US735 Round Turning Insert | Genuine Japan
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RCMX1003MO US735
Mitsubishi Materials | The Specialist for Tough Stainless & Super Alloys
The Mitsubishi RCMX1003MO US735 is a high-toughness round turning insert designed for the most demanding stainless steel machining environments. Engineered with a specialized CVD coating, this 10mm round insert excels in profiling and copy turning where interrupted cutting or unstable setups lead to edge chipping in standard grades. It is a go-to solution for austenitic stainless steels (304/316) and heat-resistant super alloys.
Technical Specifications
| ISO Designation | RCMX1003MO |
|---|---|
| ANSI Designation | RCMX 32.5 MO |
| Grade / Coating | US735 (Tough CVD Carbide) |
| Inscribed Circle ($IC$) | 10.0 mm (0.394") |
| Thickness ($S$) | 3.18 mm (0.125") |
US735 Toughness Advantage
The US735 grade features a high-TRS (Transverse Rupture Strength) substrate that acts as a shock absorber during heavy impacts. The CVD coating provides high resistance to notch wear and thermal cracking. This is arguably Mitsubishi's most reliable grade for low-to-medium speed unstable cutting in difficult-to-cut materials.
MO Profiling Chipbreaker
The MO chipbreaker provides a balanced cutting edge for general medium-cutting applications. On a round (R) insert, this indexable turning geometry maintains control over long, stringy stainless steel chips. Its design reduces cutting resistance while protecting the cutting edge during complex 3D profiling paths.
Recommended Cutting Parameters
Optimized for Stainless Steel (M20 - M40)
| Workpiece Material | Cutting Speed ($v_c$) | Feed per Rev ($f$) |
|---|---|---|
| Austenitic Stainless (304/316) | 60 - 140 m/min | 0.10 - 0.25 mm/rev |
| Duplex Stainless Steel | 40 - 90 m/min | 0.08 - 0.20 mm/rev |
| Heat Resistant Super Alloys | 30 - 70 m/min | 0.10 - 0.22 mm/rev |
SRDC / PRDCN HOLDER COMPATIBILITY
The RCMX1003MO is designed for high-rigidity Mitsubishi PRDCN or SRDC tool holders.
View Compatible Tool Holders →Metric vs. Inch Cross-Reference
| Feature | Metric (ISO) | Inch (ANSI) |
|---|---|---|
| Diameter | 10 (10.0 mm) | 32.5 (3.125/8" or 0.394") |
| Thickness | 03 (3.18 mm) | 3 (1/8" or 0.125") |
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.