Mitsubishi CCMT09T302 US735 Carbide Turning Insert for Stainless Steel (10pcs)
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CCMT09T302 US735
Stainless Steel Precision Specialist | PVD Coated | 0.2mm Radius
Material Science & Edge Sharpness
US735 Grade (PVD Toughness): Specifically engineered for ISO M (Stainless Steel) and ISO S (Heat-Resistant Alloys). Unlike CVD coatings which can be rounded, the US735 PVD coating maintains a razor-sharp edge. This is crucial for stainless steel to prevent the material from "smearing" or work-hardening. The substrate is a high-toughness carbide that resists notch wear and thermal cracking.
0.2mm Precision Radius (Low-Force Geometry): The 02 radius is designed to minimize radial cutting forces. It is the primary choice for precision finishing on long, slender workpieces or deep internal boring where chatter (vibration) is a constant risk.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | CCMT09T302 | 9.525 mm | 3.97 mm | 0.20 mm |
| Imperial | CCMT32.50.5 | 0.375" (3/8") | 0.156" (5/32") | 0.0079" |
Recommended Cutting Parameters
*The 0.2mm radius is sensitive to high feeds. Ensure your feed rate does not exceed 0.10 mm/r to avoid tip breakage.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Stainless (304/316) | 80 - 160 m/min | 0.03 - 0.10 mm/r | 0.10 - 0.60 mm |
| Titanium Alloys | 40 - 80 m/min | 0.03 - 0.08 mm/r | 0.10 - 0.40 mm |
Required Tool Holder
Maximum performance for SCLCR/L 09 Turning Tools and Boring Bars:
Shop SCLCR 09 HoldersPro-Tip: US735 vs VP15TF
US735 (PVD): The Stainless Steel Master. It features a tougher coating adhesion specifically for gummy materials and high-temp alloys. Use this when your primary goal is tool life consistency in dedicated stainless production.
VP15TF (PVD): The All-Rounder. If your shop switches between carbon steel and stainless steel on the same machine frequently, VP15TF is more versatile across both ISO P and ISO M materials.
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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.