Mitsubishi CNMG120412-MS US735 Roughing Insert for Stainless Steel (10pcs)
✓ In Stock & Fast Dispatch: Order processing: typically 1–3 business days after confirmation.
✓ Global Shipping: Delivery: generally 5–20 business days, depending on destination and shipping method.
✓ Guaranteed Quality: Check model, dimensions and compatibility before ordering. | Direct Factory Outlet
✓ Technical Support: Need grade selection help? Contact Engineer
💰 Bulk savings 2-9 pcs · 6% OFF | 10+ pcs · 12% OFF
CNMG120412-MS US735
Heavy Roughing Specialist | US735 Tough PVD | MS Chip Control Geometry
Engineered for Maximum Reliability in Tough Alloys
US735 Grade (The Impact King): The US735 is a specialized PVD-coated grade designed specifically for M-Class (Stainless Steel). It is Mitsubishi's most resilient grade against thermal cracking and mechanical shock. This makes it the go-to choice for interrupted cuts, machining through weld seams, or working with unstable setups where "stringy" materials tend to cause edge failure.
MS Chipbreaker (Stainless Precision): The MS geometry is a high-sharpness chipbreaker tailored for the unique properties of stainless steel. It prevents work hardening by shearing the material cleanly rather than "plowing" it. Despite being a finishing-oriented geometry, in the 1.2mm radius format, it provides elite chip control during heavy-duty removal.
1.2mm (3/64") Reinforced Radius: The large corner radius is built for strength and high feed rates. It dissipates heat across a larger edge area, preventing the plastic deformation common in 316 and Duplex stainless steel. It also allows for much more aggressive feed rates ($f_n$) compared to 0.4 or 0.8mm versions.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | CNMG120412-MS | 12.7 mm | 4.76 mm | 1.20 mm |
| Imperial | CNMG433-MS | 1/2" | 3/16" | 0.0472" (3/64") |
Heavy Roughing Cutting Parameters
*The US735 grade prioritizes toughness over speed. Use flood coolant for best results in stainless steel roughing.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Stainless Steel (304 / 316) | 70 - 150 m/min | 0.25 - 0.55 mm/r | 1.20 - 4.50 mm |
| Inconel / Titanium Alloys | 30 - 60 m/min | 0.20 - 0.40 mm/r | 1.00 - 3.00 mm |
Recommended Tool Holders
Maximum clamping rigidity is essential for heavy roughing. Fits DCLNR/L 12 series holders:
Shop DCLNR 12 HoldersPro-Tip: When to choose US735?
US735 (The Tough Specialist): This is your insurance policy for stainless steel. If your insert is chipping during interrupted cuts or because the machine isn't rigid enough, US735 is the answer.
VP15TF vs. US735: Use VP15TF for high-speed continuous turning to maximize tool life. Switch to US735 for roughing, heavy scale, and interrupted passes.
Search Keywords: CNMG120412-MS US735 price, Mitsubishi heavy stainless roughing inserts, CNMG433-MS carbide, US735 speed and feed chart, MS chipbreaker for stainless.
Long-tail Keywords: Best carbide inserts for heavy interrupted stainless cuts, Mitsubishi US735 for 316L stainless steel roughing, CNMG 120412-MS for vibration prone machining, buy Mitsubishi CNMG120412-MS online, high feed turning inserts for Duplex stainless.
Need Help With Mitsubishi Inserts?
Looking for a Mitsubishi equivalent, alternative grade, or sample catalog? Our CNC specialists have helped 50+ manufacturers in aerospace, automotive, and medical machining source the right tooling at 30–50% lower cost than OEM prices.
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.