Mitsubishi CNMG120408-GM MC7025 Stainless Steel Turning Insert (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
CNMG120408-GM MC7025
Stainless Steel Workhorse | MC7025 Heat Resistance | GM Balanced Geometry
Optimized for Tough & Sticky Materials
MC7025 Grade (CVD Stainless Specialist): The MC7025 is Mitsubishi's premier CVD-coated grade for M-Class (Stainless Steel). It features a specialized coating layer designed to prevent "galling" and built-up edge. Its high resistance to thermal cracking makes it ideal for the high-temperature environment of stainless turning, ensuring the cutting edge stays sharp longer than general-purpose grades.
GM Chipbreaker (General Medium-Range): The GM geometry is a versatile "all-rounder." It is engineered to control chips across a wide variety of feed rates and depths of cut. In stainless steel, where chip control is notoriously difficult, the GM design breaks chips into manageable "6-shapes," preventing bird-nesting and workpiece damage.
0.8mm (1/32") Universal Radius: The 08 radius provides a robust cutting edge. It offers a superior balance of strength and surface finish, making it the standard choice for semi-finishing to light roughing operations in industrial manufacturing.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | CNMG120408-GM | 12.7 mm | 4.76 mm | 0.80 mm |
| Imperial | CNMG432-GM | 1/2" | 3/16" | 0.0315" (1/32") |
Stainless Cutting Parameters
*The 0.8mm radius allows for higher feed rates. Use high-pressure coolant to prolong tool life in austenitic stainless steels.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Austenitic (304 / 316) | 120 - 220 m/min | 0.15 - 0.40 mm/r | 1.00 - 4.00 mm |
| Martensitic (410 / 440C) | 140 - 260 m/min | 0.12 - 0.35 mm/r | 0.80 - 3.50 mm |
Compatible Tool Holders
Maximum clamping rigidity is required for stainless turning. Fits DCLNR/L 12 series holders:
Shop DCLNR 12 HoldersPro-Tip: MC7025 vs. MP7035
MC7025 (The Productivity Choice): A CVD grade designed for high-speed, continuous cuts where heat resistance is critical.
MP7035 (The Tough Choice): A PVD grade. Switch to MP7035 if you are facing heavy interrupted cuts or low cutting speeds that cause edge chipping.
Search Keywords: CNMG120408-GM MC7025 price, Mitsubishi stainless turning inserts, CNMG432-GM carbide, MC7025 speed and feed 316 stainless, GM chipbreaker range.
Long-tail Keywords: Best carbide inserts for 304 stainless steel, Mitsubishi MC7025 for high speed stainless turning, CNMG 120408-GM for CNC lathe productivity, buy genuine Mitsubishi MC7025 online, heat resistant stainless steel inserts.
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.