Mitsubishi DNMG150404-MS US735 Insert | Interrupted Stainless Finishing
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DNMG150404-MS US735
Precision Impact Mastery | Tough US735 Grade | MS Anti-Vibration Geometry
Engineered for Unstable Stainless Steel Conditions
US735 Grade (The Toughness Standard): The US735 is Mitsubishi's premier high-toughness PVD grade. Designed specifically for Stainless Steel, it features a specialized coating that withstands the high temperatures of gummy alloys while the substrate remains flexible enough to absorb the shock of Interrupted Cuts. It is the definitive grade for preventing sudden edge breakage.
MS Chipbreaker (The Finishing Specialist): The MS (Medium-Sharp) geometry features a micro-sharp cutting edge. This is crucial for Austenitic Stainless Steel (300 series), as it slices the material rather than pushing it, significantly reducing Work Hardening. This ensures that the next pass is as smooth as the first, protecting your overall tool life.
0.4mm Radius (Tight Dimensional Control): The "04" (1/64") radius is the choice for precision finishing. It reduces radial pressure during the cut, which is essential for maintaining accuracy on long, slender shafts or thin-walled components where deflection is a concern.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | DNMG150404-MS | 12.70 mm | 4.76 mm | 0.40 mm |
| Imperial | DNMG431-MS | 1/2" | 3/16" | 0.0157" (1/64") |
Recommended Cutting Parameters
*Optimized for finishing. Maintain lower speeds for high-nickel alloys to manage heat.
| Material Group | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| 304 / 316 Stainless Steel | 60 - 150 m/min | 0.05 - 0.20 mm/r | 0.20 - 1.50 mm |
| Duplex / Super Alloys | 40 - 80 m/min | 0.08 - 0.15 mm/r | 0.30 - 1.20 mm |
Compatible Tool Holders
Maximum finishing stability with 15-series DDJNR or DDUNR systems:
Shop DDJNR 15 HoldersPro-Tip: US735 vs. VP15TF
US735 (The Heavy-Duty Toughness): Essential for finishing passes on parts with cross-holes, keyways, or if your machine lacks rigidity. It prevents micro-cracking at the tip.
VP15TF (The Continuous Speedster): Switch to VP15TF only for clean, high-speed continuous CNC finishing. It offers better thermal wear resistance but will chip more easily if it hits an interruption.
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