Mitsubishi TPMH160304-MV US735 | Stainless Steel Carbide Insert
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TPMH160304-MV US735
Mitsubishi Materials | Heavy-Duty Stainless Steel Specialist
Heavy-Duty Precision for Stainless Boring
The Mitsubishi TPMH160304-MV US735 is a high-toughness PVD coated carbide insert designed for the most demanding stainless steel turning applications. The US735 grade is engineered with a specialized substrate that excels in the "M" material group, providing incredible resistance to Built-Up Edge (BUE) and thermal cracking. With its large 16mm edge length and the MV chipbreaker, it is the premier long-tail turning tool for finishing large internal diameters in 304, 316, and Duplex Stainless Steels.
US735 PVD Toughness | MV Finishing Geometry | Large Scale Precision
Technical Code Identification
Triangular Shape
11° Positive Relief
M-Class Tolerance
Countersink Hole
16.5mm Edge
3.18mm Thick
0.4mm Radius
Chipbreaker
ISO (Metric) vs ANSI (Inch) Comparison
| Feature Spec | ISO (Metric) | ANSI (Inch Equivalent) |
|---|---|---|
| Model Number | TPMH160304-MV | TPMH 321 MV |
| Inscribed Circle (IC) | 9.525 mm | 0.375" (3/8") |
| Thickness | 3.18 mm | 0.125" (1/8") |
US735 Grade Performance
The US735 grade utilizes an advanced PVD (Physical Vapor Deposition) coating over a high-toughness carbide substrate. This allows the insert to withstand the high mechanical stress and intermittent impacts common in large-diameter stainless steel machining. It is particularly effective at preventing notch wear and adhesion (welding) between the chip and the tool.
MV "Multi-Value" Chip Control
The MV chipbreaker is designed for finishing and light-medium turning. Its sharp cutting geometry reduces radial cutting forces, which is critical for maintaining concentricity in deep CNC boring. It forces tough stainless chips into small, compact curls, ensuring they flush out easily without damaging the surface finish.
Recommended Cutting Parameters
| Material Group | Speed ($v_c$) | Feed ($f$) | DOC ($a_p$) |
|---|---|---|---|
| Stainless Steel (304/316) | 80 - 150 m/min | 0.05 - 0.20 mm/rev | 0.2 - 2.5 mm |
| Precipitation Hardened (17-4PH) | 60 - 120 m/min | 0.05 - 0.15 mm/rev | 0.2 - 2.0 mm |
COMPATIBLE HOLDERS
Designed for high-rigidity STFPR/L 16 or STGPR/L 16 boring bars.
Shop 16mm Boring Bars →
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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.