Mitsubishi CNMG190612-MA US735 Heavy Duty Stainless Steel Insert (10pcs)
Free shipping on all orders.
Check compatibility: Confirm the model and dimensions before ordering.
Need help choosing? Contact us before ordering.
💰 Bulk savings 2-9 pcs · 6% OFF | 10+ pcs · 12% OFF
CNMG190612-MA US735
Heavy Roughing Titan | US735 PVD Grade | MA Medium-Heavy Geometry
Built for Extreme Scale & Heavy Roughing
US735 Grade (The Impact Specialist): When machining large stainless steel parts, heat and scale are the enemies. The US735 PVD-coated grade is designed with an ultra-tough substrate that absorbs mechanical shock. Its specialized coating layer prevents "notch wear" at the depth-of-cut line, a common failure point in Austenitic Stainless Steels.
MA Chipbreaker (Controlled Power): The MA geometry on this 19mm insert is scaled for medium-to-heavy depths of cut. It balances a sharp cutting action to reduce work-hardening with a strong land area that supports the cutting edge during aggressive metal removal.
1.2mm (3/64") Roughing Radius: The 12 radius is essential for heavy-duty turning. It provides maximum corner strength to withstand the high radial forces generated during deep cuts (up to 8mm depth) while maintaining tool integrity through interrupted sections.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | CNMG190612-MA | 19.05 mm | 6.35 mm | 1.20 mm |
| Imperial | CNMG643-MA | 3/4" | 1/4" | 0.0472" (3/64") |
Heavy-Duty Cutting Parameters
*Due to the 19mm size, ensure your machine has high torque and the tool holder is a rigid double-clamp type.
| Material Group | Speed (Vc) | Feed (fn) | Max Depth (Ap) |
|---|---|---|---|
| 304/316 Stainless Steel | 60 - 140 m/min | 0.25 - 0.60 mm/r | 1.50 - 8.00 mm |
| Duplex Stainless / Inconel | 20 - 50 m/min | 0.20 - 0.45 mm/r | 1.50 - 5.00 mm |
Heavy-Duty Tool Holders
Engineered for DCLNR/L 19 or MCLNR/L 19 series (3232 or 4040 shank sizes recommended):
Shop DCLNR 19 HoldersPro-Tip: When to choose the 1906 size?
CNMG190612 (The Power Choice): Use this when your depth of cut exceeds 5mm or when machining large diameter shafts. The thicker 6.35mm insert body dissipates heat much better than the standard 1204 series.
Interrupted Cuts: US735 is legendary for handling heavy interruptions. If your 19mm inserts are breaking due to impact, ensure you are using a Double Clamp (D-Type) holder for maximum security.
Search Keywords: CNMG190612-MA US735 price, Mitsubishi large stainless steel inserts, CNMG643-MA carbide, US735 speed and feed for roughing, 19mm turning inserts.
Long-tail Keywords: Best heavy roughing inserts for 316 stainless steel, Mitsubishi US735 grade for large diameter turning, CNMG 1906 series carbide for interrupted cuts, buy Mitsubishi CNMG190612-MA online, high MRR turning for duplex stainless steel forgings.
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.