Mitsubishi VNMG160408-MA US735 Carbide Insert | VNMG 332
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Mitsubishi VNMG160408-MA US735
High-Toughness CVD Grade for Interrupted Stainless Steel Machining
The Mitsubishi VNMG160408-MA US735 is a premium 35° rhombic negative-type carbide turning insert designed for maximum reliability. Engineered specifically for stainless steel turning, the US735 grade excels in interrupted cutting and unstable machining conditions. This VNMG 332-MA ANSI equivalent is a staple for CNC lathe operations where thermal cracking and chipping resistance are paramount.
Detailed Model Nomenclature
Decoding the VNMG160408-MA specification:
| Code | Specifications |
|---|---|
| V | Shape: 35° Rhombic (Diamond) |
| N | Clearance Angle: 0° (Negative) |
| M | Tolerance Class: Medium Precision |
| G | Feature: Double-Sided with Hole |
| 16 | Size: ~16mm Cutting Edge Length |
| 04 | Thickness: 4.76mm |
| 08 | Nose Radius: 0.8mm (Medium Roughing/Cutting) |
| MA | Chipbreaker: Medium Cut (Medium Application) |
Global Interchangeability: ISO vs ANSI
This precision turning tool is standardized for global machining:
- ISO (Metric): VNMG160408-MA
- ANSI (Imperial): VNMG 332-MA
Advanced Material & Geometry
US735 Tough CVD Grade: This grade is Mitsubishi’s specialized CVD coated carbide for heavy-duty stainless steel turning. It features a high-toughness substrate paired with a coating that resists thermal shock, preventing the "cracking" often seen in wet, interrupted stainless cutting.
MA Chipbreaker: The MA breaker is the versatile "all-rounder" for medium-range cutting. It provides stable chip control across varied feed rates, ensuring a high surface finish while reducing the risk of chip entanglement on the tool holder.
Cutting Parameters (Recommended)
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (f) | Depth of Cut (ap) |
|---|---|---|---|
| Stainless Steel (304/316) | 60 - 150 m/min | 0.15 - 0.45 mm/rev | 1.0 - 4.0 mm |
| Mild Steel (Roughing) | 80 - 180 m/min | 0.20 - 0.50 mm/rev | 1.0 - 3.5 mm |
Optimize Your Production
Ensure maximum stability by pairing this VNMG 332 insert with our high-quality holders.
Shop Compatible DVJNR/L Tool HoldersPro-Tip: Grade Selection Advice
US735 is your "Problem Solver" for interrupted cuts in stainless. For continuous, high-speed turning of stainless steel, we recommend VP15TF (PVD) for sharper edges. If you are machining carbon steel in stable conditions, the UE6110 or UE6020 grades will provide superior wear resistance at higher RPMs.
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.