Mitsubishi RCMT0803MO US735 Round Turning Insert | Genuine Japan
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RCMT0803MO US735
Mitsubishi Materials | Stainless Steel Profiling Specialist
The Mitsubishi RCMT0803MO US735 is a premium round turning insert engineered for extreme toughness and reliability. Round inserts are the professional standard for profiling and copy turning due to their robust edge geometry. Featuring the specialized US735 PVD coating, this insert is a heavy-duty solution for machining stainless steel, particularly in interrupted cutting conditions where thermal shock and chipping often lead to premature tool failure in CNC turning.
Technical Specifications
| ISO Designation | RCMT0803MO |
|---|---|
| ANSI Designation | RCMT 2.53 MO |
| Grade / Coating | US735 (TiAlN PVD Coated) |
| Inscribed Circle (IC) | 8.0 mm (0.315") |
| Thickness (S) | 3.18 mm (0.125") |
US735 PVD Toughness
The US735 grade is Mitsubishi's dedicated PVD coated carbide for the M-class (Stainless Steel). It utilizes a specialized tough substrate that excels during heavy roughing and interrupted cuts. The TiAlN coating layer provides a smooth surface to prevent built-up edge (BUE), a common issue when turning gummy austenitic stainless steels like 304 or 316.
MO Geometry Design
The MO chipbreaker provides a balanced cutting edge that manages cutting resistance effectively across the circular profile. Since round inserts do not have a fixed corner radius, the MO geometry allows for high feed rates while maintaining excellent chip control, significantly improving the surface finish during complex 3D profiling operations.
Recommended Cutting Parameters
Primary Material: Stainless Steel (M20 - M40)
| Workpiece Material | Cutting Speed ($v_c$) | Feed per Rev ($f$) |
|---|---|---|
| Austenitic Stainless (304/316) | 70 - 140 m/min | 0.10 - 0.25 mm/rev |
| Ferritic/Martensitic (400 Series) | 90 - 160 m/min | 0.10 - 0.28 mm/rev |
| Duplex Stainless Steel | 40 - 90 m/min | 0.08 - 0.18 mm/rev |
SRDC / SRGC HOLDER COMPATIBILITY
The RCMT0803MO insert is designed for high-stability SRDC style turning tool holders.
View Compatible Tool Holders →Metric vs. Inch Cross-Reference
| Feature | Metric (ISO) | Inch (ANSI) |
|---|---|---|
| Diameter | 08 (8.0 mm) | 2.5 (5/16" or 0.315") |
| Thickness | 03 (3.18 mm) | 3 (1/8" or 0.125") |
Need Help With Mitsubishi Inserts?
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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.