Mitsubishi CPMH090304-MV US735 Stainless Steel Turning Insert (10pcs)
Price shown is a starting point. Contact us for a precise quote based on your requirements.
CPMH090304-MV US735
Impact Strength Specialist | US735 Tough-Barrier CVD | MV Chip Control
Engineered for Unstable & Tough Environments
US735 Grade (The Impact Expert): The US735 is Mitsubishi's toughest CVD grade for M-Class (Stainless Steel). It is specifically formulated to prevent edge chipping when machining through bolt holes, keyways, or raw casting surfaces. The specialized coating structure absorbs mechanical shock and provides superior thermal crack resistance, making it much more reliable than standard grades for heavy-duty stainless tasks.
MV Chipbreaker (Precision Medium Cut): The MV geometry is a versatile 11-degree positive design. It is engineered to slice through gummy materials like 316 stainless without causing work hardening. The MV breaker forces chip breakage across a wide range of feed rates, protecting your workpiece finish and preventing "nesting" in your CNC machine.
0.4mm (1/64") Radius: The 04 radius provides the perfect balance between edge strength and low cutting resistance. It is the ideal choice for finishing operations and small-diameter internal boring where minimizing radial pressure is critical to prevent chatter.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | CPMH090304-MV | 9.525 mm | 3.18 mm | 0.40 mm |
| Imperial | CPMH321-MV | 3/8" | 1/8" | 0.0157" (1/64") |
Recommended Cutting Parameters
*US735 thrives in tough conditions. If edge wear is too fast but the tool is not chipping, consider moving to US7020.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Austenitic (304/316) | 80 - 180 m/min | 0.06 - 0.22 mm/r | 0.30 - 2.50 mm |
| Duplex Stainless | 60 - 130 m/min | 0.05 - 0.18 mm/r | 0.25 - 1.80 mm |
Compatible Tool Holders
Standardize your setup with SCLC or SCPC series holders and boring bars:
Shop 09-Series HoldersPro-Tip: US735 vs. US7020
US735 (The Tough Expert): Your first choice for interrupted cuts, heavy scale, or vibration-prone setups. It prioritizes toughness over speed.
US7020 (The Speed Expert): Switch to US7020 for continuous, high-speed turning in stable conditions to achieve longer tool life via higher wear resistance.
Search Keywords: CPMH090304-MV US735 price, Mitsubishi stainless inserts, CPMH321 carbide, US735 speed and feed data, MV chipbreaker for Inconel.
Long-tail Keywords: Best carbide inserts for interrupted stainless cuts, Mitsubishi US735 for 316 stainless steel, CPMH 090304-MV for internal boring, buy genuine Mitsubishi US735 online, high toughness stainless inserts.
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.