

CNMG1204 Turning Insert is an 80° rhombus shaped carbide insert designed for external rough turning operations. Features 4 cutting edges for economy, available in multiple nose radius options (0.4mm, 0.8mm, 1.2mm) for various machining requirements. TM chip breaker for reliable chip control in medium steel machining, and CVD TiN+Al2O3 dual-tone coating (black top, gold sides) for excellent wear and heat resistance. The negative rake design provides high strength and stability for interrupted cutting. Grade YT120S with tough 8-12% cobalt substrate ensures durability in 45# steel, Q235/A3, spring steel, mold steel, and cast steel (HRC40 and below).
Unit Price: 3.85 USD
Volume Discount
Order Value
1000 + USD
Discount
3% off
Order Value
3000 + USD
Discount
5% off
Order Value
8000 + USD
Discount
8% off
Order Value
15000 + USD
Discount
12% off
Order Value
30000 + USD
Discount
15% off
Order Value
50000 + USD
Discount
18% off
Discounts are automatically applied at checkout based on order value.
Available Warehouse
China Factory
Stock & Production Available
Accepted Payment
Specifications
| Cart+ | SKU | Price | Quantity | Total | Shape | Edges | Relief Angle | Nose Radius (mm) | Cutting Edge (mm) | Thickness (mm) | Chip Breaker | Grade | Coating |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
CNMG120404-TM-YT120S | $3.85 | $0 | 80° Rhombus | 4 | 0° | 0.4 | 12.7 | 4.76 | TM | YT120S | CVD TiN+Al2O3 | ||
CNMG120408-TM-YT120S | $3.85 | $0 | 80° Rhombus | 4 | 0° | 0.8 | 12.7 | 4.76 | TM | YT120S | CVD TiN+Al2O3 | ||
CNMG120412-TM-YT120S | $3.85 | $0 | 80° Rhombus | 4 | 0° | 1.2 | 12.7 | 4.76 | TM | YT120S | CVD TiN+Al2O3 |
Features
Key product features and specifications that make this product stand out.
80° rhombus shape with 4 cutting edges for economy
TM chip breaker for medium steel machining
CVD TiN+Al2O3 dual-tone coating (black top, gold sides)
Negative rake design for high strength and stability
Grade YT120S: suitable for HRC40 and below
YT120S materials: 45# steel, Q235/A3, spring steel, mold steel, cast steel