Mitsubishi TCMT16T304 US735 | PVD Carbide Insert for Stainless Steel
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TCMT16T304 US735
Mitsubishi Materials | The Specialist for Stainless Steel & Interrupted Cutting
The Mitsubishi TCMT16T304 US735 is a high-toughness PVD coated carbide insert specifically engineered for stainless steel turning. Utilizing the legendary US735 grade, this insert excels in environments with high thermal shock and interrupted cuts. It is the premier choice for long-tail precision tools used in machining austenitic stainless steels (300 series) where edge reliability and resistance to built-up edge (BUE) are critical.
PVD Nano-Coating | M-Class Precision | Toughness Specialist
Nomenclature Breakdown
Triangular Shape
7° Relief Angle
M-Class Tolerance
Fixing Hole
16.5mm Edge
3.97mm Thick
0.4mm Radius
International Standard Conversion
| Parameter | Metric Model (ISO) | Inch Model (ANSI) |
|---|---|---|
| Model Reference | TCMT16T304 | TCMT 32.51 |
| Inscribed Circle (IC) | 9.525 mm | 0.375" |
| Thickness (S) | 3.97 mm | 0.156" |
| Corner Radius (RE) | 0.4 mm | 0.016" |
US735 Grade Performance
The US735 grade is Mitsubishi's specialized PVD coated carbide designed for the "tough" side of the ISO M (Stainless) and ISO P (Steel) spectrum. It is characterized by high resistance to thermal cracking and chipping, making it unparalleled for interrupted cutting and machining materials that tend to stick to the edge.
Precision Chip Control
The TCMT positive geometry combined with the US735 coating significantly reduces cutting resistance. Its dedicated chipbreaker is designed for stable chip evacuation in gummy stainless steels, ensuring that long, stringy chips do not damage the workpiece surface or the indexable turning tool.
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed ($v_c$) | Feed per Rev ($f$) | DOC ($a_p$) |
|---|---|---|---|
| Austenitic Stainless (304/316) | 80 - 150 m/min | 0.08 - 0.22 mm/rev | 0.5 - 2.5 mm |
| Low Carbon Steel (Interrupted) | 140 - 240 m/min | 0.10 - 0.25 mm/rev | 0.5 - 2.0 mm |
HOLDER COMPATIBILITY
Compatible with all standard STFCR/L boring bars and STGCR/L external turning tool holders (Size 16).
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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.