Mitsubishi TNMG160408-MS US735 | Tough Stainless Steel Turning Insert
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TNMG160408-MS US735
Mitsubishi Materials | The Tough-Machining Benchmark for Stainless
The Mitsubishi TNMG160408-MS US735 is a high-performance CVD coated carbide insert engineered for the toughest stainless steel turning challenges. Utilizing the US735 grade, this tool is the primary choice for interrupted cuts where other inserts chip or fail. This long-tail precision tool features the MS chipbreaker, specifically designed to handle the gummy nature of stainless steel while maintaining stable CNC machining performance.
M-Class Application | High Impact Resistance | MS Light-Medium Breaker
Technical Code Breakdown
Triangular Shape
0° Relief Angle
M-Class Tolerance
Hole/Chip Feature
16.5mm Edge
4.76mm Thick
0.8mm Radius
Light-Med Breaker
ISO vs ANSI Standards
| Spec Detail | ISO (Metric) | ANSI (Inch) Equivalent |
|---|---|---|
| Model Identification | TNMG160408-MS | TNMG 332 MS |
| Inscribed Circle (IC) | 9.525 mm | 0.375" |
| Nose Radius | 0.8 mm | 0.031" |
US735 Material Grade
The US735 grade is Mitsubishi's ultimate toughness grade for indexable turning inserts. It utilizes a high-toughness substrate combined with a CVD coating that resists thermal cracking. It is the definitive solution for machining 300-series stainless steels, especially when the cut is unstable or involves heavy interruptions.
MS Chipbreaker Geometry
The MS chipbreaker is a specialized medium-light cutting geometry. Its sharp rake angle significantly reduces cutting forces and prevents built-up edge (BUE). This allows for superior chip control even at lower feed rates, preventing damage to the workpiece surface in gummy materials.
Recommended Cutting Parameters
| Material Group | Speed ($v_c$) | Feed per Rev ($f$) | DOC ($a_p$) |
|---|---|---|---|
| Austenitic Stainless (304/316) | 60 - 140 m/min | 0.12 - 0.35 mm/rev | 1.0 - 4.0 mm |
| High-Temp Alloys (Inconel) | 25 - 55 m/min | 0.10 - 0.30 mm/rev | 0.8 - 3.0 mm |
MATCHING TOOL HOLDERS
Designed for MTJNR/L or WTJNR/L external turning holders (Size 16).
Browse Size 16 Holders →
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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.