Mitsubishi VCMT160404 US735 Carbide Insert | VCMT 331
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Mitsubishi VCMT160404 US735
Professional Grade Carbide Inserts for Stainless Steel Turning
The Mitsubishi VCMT160404 US735 is a premier 35° rhombic positive displacement insert specifically engineered for the challenges of stainless steel machining. Utilizing the renowned US735 CVD coated grade, this insert provides industry-leading toughness and resistance to thermal cracking, making it the go-to solution for CNC lathe operations involving austenitic and martensitic stainless steels.
Model Nomenclature Breakdown
Understand the technical precision behind every Mitsubishi carbide blade:
| Code | Feature Description |
|---|---|
| V | Shape: 35° Rhombic Diamond |
| C | Clearance Angle: 7° (Positive) |
| M | Tolerance: Medium Precision Class |
| T | Feature: Countersunk Hole with Chipbreaker |
| 16 | Cutting Edge Length: Approx. 16mm |
| 04 | Thickness: 4.76mm |
| 04 | Corner Radius: 0.4mm (Fine Finishing) |
International Standard Comparison
Whether you use Metric or Imperial measurements, this insert fits global standards:
- Metric Model (ISO): VCMT160404
- Imperial Model (ANSI): VCMT 331
Advanced Grade & Chip Control
US735 Grade: This CVD-coated carbide grade is the first choice for interrupted cutting of stainless steel. It features a specialized substrate that absorbs impact and a coating that resists built-up edge (BUE), significantly extending tool life compared to standard inserts.
Finishing Chipbreaker: The VCMT160404 is designed for light-to-medium depths of cut, providing excellent chip curling even at high feed rates, ensuring your CNC machine runs without "bird-nesting."
Technical Cutting Parameters
For optimal performance in stainless steel turning, we recommend the following parameters:
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (f) | Depth of Cut (ap) |
|---|---|---|---|
| Stainless (304/316) | 80 - 170 m/min | 0.08 - 0.20 mm/rev | 0.3 - 2.0 mm |
| Alloy Steel | 100 - 200 m/min | 0.10 - 0.25 mm/rev | 0.5 - 2.5 mm |
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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.