Mitsubishi VNMG160404-MS US735 Carbide Insert | VNMG 331
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Mitsubishi VNMG160404-MS US735
Tough CVD Coated Grade for Precision Stainless Steel Machining
The Mitsubishi VNMG160404-MS US735 is a high-toughness 35° rhombic negative-type carbide turning insert. Engineered specifically for the challenges of stainless steel turning, the US735 grade combined with the MS chipbreaker is Mitsubishi’s premier solution for difficult-to-machine materials. This VNMG 331-MS ANSI equivalent provides exceptional resistance to thermal cracking and adhesive wear, making it a reliable CNC lathe tool for both continuous and interrupted cuts.
Technical Nomenclature Breakdown
Understanding the precision behind the VNMG160404-MS identification code:
| Code | Detailed Specification |
|---|---|
| V | Shape: 35° Rhombic (Diamond) |
| N | Clearance Angle: 0° (Negative Insert) |
| M | Tolerance Class: Medium Precision |
| G | Feature: Double-Sided with Hole |
| 16 | Size: ~16mm Cutting Edge Length |
| 04 | Thickness: 4.76mm |
| 04 | Nose Radius: 0.4mm (Precision Finishing) |
| MS | Chipbreaker: Medium-Finishing for Stainless Steel |
Global Interchangeability: ISO vs. ANSI
This high-performance turning insert follows international standards for CNC machining:
- ISO (Metric): VNMG160404-MS
- ANSI (Imperial): VNMG 331-MS
US735 Grade & MS Breaker Analysis
US735 Grade (CVD Coated): Specifically optimized for the high-efficiency machining of stainless steel. This grade uses a tough substrate and a specialized coating to combat the high heat and work-hardening properties of austenitic stainless steels (304, 316). It is highly resistant to notch wear and thermal shock.
MS Chipbreaker: The MS geometry is a "Medium-Sharp" breaker. It is designed to reduce cutting forces and minimize work hardening on the workpiece surface. It provides excellent chip control during finishing and light-medium turning operations.
Cutting Parameters (Recommended)
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (f) | Depth of Cut (ap) |
|---|---|---|---|
| Stainless Steel (Austenitic) | 80 - 160 m/min | 0.08 - 0.25 mm/rev | 0.5 - 2.5 mm |
| Heat Resistant Alloys | 30 - 70 m/min | 0.10 - 0.20 mm/rev | 0.5 - 2.0 mm |
Tooling Integration
Ensure maximum stability by pairing this VNMG 331 insert with our premium holders.
Shop Compatible DVJNR/L Tool HoldersPro-Tip: Grade Selection Advice
US735 is your "Problem Solver" for interrupted cuts in stainless steel. For stable, high-speed turning of stainless steel, we recommend the VP15TF (PVD) grade for its sharper edge. If you are machining carbon steel, the UE6110 or MC6025 grades will provide better wear resistance at higher speeds.
Need Help With Mitsubishi Inserts?
Looking for a Mitsubishi equivalent, alternative grade, or sample catalog? Our CNC specialists have helped 50+ manufacturers in aerospace, automotive, and medical machining source the right tooling at 30–50% lower cost than OEM prices.
This Mitsubishi insert is in stock. 24-hour quote response. ISO 9001 certified. Ships from Hangzhou in 3–7 days.
Technical FAQ & Buying Guide
When choosing CNC cutting tools, check the full model code, dimensions, grade and selected variant before ordering. Do not rely on the product image alone.
For carbide inserts, tool holders, drills and end mills, compare the mounting dimensions, connection type and manufacturer's specifications with your holder or machine. If you are unsure, share your existing part number and machining application with us before ordering.
Check the product listing for the selling unit, pack quantity and included components. If it is unclear whether the price is per piece or per pack, or whether a tool body and inserts are sold separately, contact us before purchasing.
Select cutting speed, feed rate and depth of cut using the relevant manufacturer's recommendations for your tool model, workpiece material, machine conditions and coolant method. The same settings are not suitable for every product or application.
Our automatic quantity discount is 6% off for 2–9 items and 12% off for 10 or more items, based on the total product quantity in the cart. Other offers may not combine with this discount; check the applicable offer conditions.
According to our shipping policy, orders are typically processed and shipped within 1–3 business days after confirmation. Delivery generally takes 5–20 business days, depending on your destination and shipping method. Customs clearance or unforeseen delays may affect delivery times. A tracking number is sent by email after shipment.