Mitsubishi DCMT11T302 US735 Carbide Insert for Stainless Steel (10pcs)
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DCMT11T302 US735
Anti-Vibration Stainless Specialist | US735 Tough CVD | 0.2mm Radius
Engineered for Precision in Tough Alloys
US735 Grade (CVD Toughness Tech): The US735 is Mitsubishi’s premier grade for Stainless Steel. It features a specialized thick TiCN + Al2O3 coating layer that provides extreme heat resistance. The substrate is engineered with a high level of fracture toughness, allowing this insert to survive interrupted cuts and unstable setups that would shatter standard finishing grades.
DCMT Geometry (Positive Rake): The 55-degree diamond shape with a positive rake angle is designed to "slice" rather than "push" gummy stainless steel (like 304/316). This prevents Built-up Edge (BUE) and ensures that the heat stays in the chip, not the workpiece.
0.2mm Radius (Low Cutting Force): The ultra-small 0.2mm radius is a specialist tool. By reducing the contact area between the tool and the part, it minimizes radial forces. This is the #1 solution for preventing chatter in long-reach boring bars or thin-walled components.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | DCMT11T302 | 9.525 mm | 3.97 mm | 0.20 mm |
| Imperial | DCMT32.50.5 | 3/8" | 5/32" | 0.0078" |
Recommended Cutting Parameters
*The 0.2mm radius requires lower feed rates to maintain edge integrity and surface finish.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Austenitic Stainless (304/316) | 80 - 150 m/min | 0.02 - 0.10 mm/r | 0.05 - 0.80 mm |
| Duplex Stainless Steel | 40 - 90 m/min | 0.02 - 0.08 mm/r | 0.05 - 0.60 mm |
Pro-Tip: US735 vs. NX2525 Cermet
US735 (CVD Carbide): Optimized for toughness. If your stainless steel part has a hexagon, keyway, or requires heavy coolant, use US735. It handles the shock.
NX2525 (Cermet): Use only for dry, continuous finishing of carbon steels. Do not use Cermet on stainless steel as it will react chemically and chip.
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