Mitsubishi VBMT110304-MV US735 | Stainless Steel Turning Insert
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VBMT110304-MV US735
Mitsubishi Materials | The Tough Stainless Steel Profiling Expert
Superior Toughness for Interrupted & Gummy Cuts
The Mitsubishi VBMT110304-MV US735 is a 35° diamond PVD coated carbide insert specifically developed for machining Stainless Steel (M-class). The US735 grade features high fracture toughness and a smooth coating layer to combat thermal cracking and Built-Up Edge (BUE). Equipped with the MV (Medium-V) chipbreaker and a 0.4mm corner radius, this long-tail stainless turning insert provides reliable performance in semi-finishing applications and difficult-to-cut alloys.
US735 PVD Grade | MV Versatile Breaker | Optimized for Stainless (M Group)
Technical Code Identification
35° Diamond
5° Relief Angle
M-Class Tolerance
Countersink Hole
11mm Edge
3.18mm Thick
0.4mm Radius
Breaker/Grade
ISO (Metric) vs ANSI (Inch) Comparison
| Feature Spec | ISO (Metric) | ANSI (Inch Equivalent) |
|---|---|---|
| Model Number | VBMT110304-MV | VBMT 221-MV |
| Inscribed Circle (IC) | 6.35 mm | 0.250" (1/4") |
| Corner Radius | 0.4 mm | 0.0157" (1/64") |
US735 Tough PVD Coating
The US735 grade is Mitsubishi's premier solution for stainless steel machining. This PVD coated grade is specifically designed for toughness to prevent edge chipping during interrupted cuts. It features a high resistance to plastic deformation, making it the best long-tail insert for tough austenite stainless steels (304, 316) that tend to work-harden quickly.
MV Chipbreaker Performance
The MV (Medium-V) chipbreaker is an all-rounder. For gummy materials like stainless steel, chip control is the biggest challenge. The MV geometry creates a stable "chip-breaking pocket" that prevents long stringy chips from scratching the surface finish or wrapping around the spindle during CNC profiling.
Recommended Cutting Parameters
| Material Group | Speed ($v_c$) | Feed ($f$) | DOC ($a_p$) |
|---|---|---|---|
| Austenitic Stainless (304/316) | 60 - 140 m/min | 0.08 - 0.20 mm/rev | 0.5 - 2.5 mm |
| Duplex Stainless Steel | 40 - 90 m/min | 0.08 - 0.15 mm/rev | 0.5 - 2.0 mm |
COMPATIBLE HOLDERS
Fits SVJBR/L 11, SVVBN 11 external tool holders, or precision Boring Bars.
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Technical FAQ & Buying Guide
Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.
We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:
- For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
- For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
The optimal cutting parameters vary depending on the workpiece hardness and operation type:
- For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
- For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.
We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.
All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.