CNMG 120402 车削刀片
对比 合适的材料与应用, ，然后选择 a brand 查看 the exact SKUs.
- ISO Code
- CNMG120402
- 刀片尺寸
- 120402
- Shape
- C
查找合适的选项
Select the workpiece material and application. 品牌 remains optional.
Brands
该父型号的全部可选规格。
This page covers every CNMG 120402 insert we can supply — 4 variants across Achteck, published for 钢, 铸铁. The 80° rhombic geometry gives it 4 cutting edges and makes it suitable for general turning and profiling.
The designation encodes the geometry: the first letter is the shape (C), the following letter the clearance angle, then the tolerance class, then size, thickness and nose radius. If you want to check any of it, our ISO insert code decoder breaks the full string down character by character.
Geometry and dimensions
| Insert family | CNMG |
|---|---|
| Category | 车削刀片 |
| Shape | 80° rhombic (C) |
| Usable cutting edges | 4 |
| 内切圆直径 (IC) | 12.7 mm |
| 厚度 (S) | 3.18–4.76 mm (typically 4.76 mm) |
| 刀尖圆角 (RE) | 0.2 mm |
| Fixing hole diameter (D1) | 3.81–5.16 mm (typically 5.16 mm) |
| Hand | Neutral |
| Variants in stock | 4 |
| Brands | Achteck |
Recommended cutting data
The figures below are the manufacturers' published ranges, aggregated across the 4 variants listed on this page. The typical column is the median, which is where most shops end up running. Treat the full range as the envelope, not a target — start around 60–70% of it and work up.
| 工件材料 | Cutting speed vc (m/min) | Typical vc | Feed fn (mm/rev) | Depth of cut ap (mm) | Variants with data |
|---|---|---|---|---|---|
| 钢 (P) | 50 – 620 | 72.5 – 385 | 0.04–0.25 | 0.2–1.5 | 4 of 4 |
| 铸铁 (K) | 50 – 200 | 50 – 200 | 0.04–0.25 | 0.2–1.5 | 1 of 4 |
To turn a cutting speed into a spindle speed for your actual diameter, use the cutting parameters calculator: n = vc × 1000 / (π × D).
Carbide grades available
4 variants of CNMG 120402 are stocked in these grades: AC052P, AC152P, AT202, AT210A.
Across this range the grades specified most often are AC052P, AC152P, AT202, AT210A. Within one brand's range, a higher middle digit usually means a tougher grade — better on interrupted cuts, slightly less wear resistant. See carbide grades explained for how to read the names.
槽型 geometries
断屑槽 stocked for CNMG 120402: PA1.
The chipbreaker sets the usable feed window far more than the depth of cut does. A roughing geometry run at finishing feed will not break the chip; a finishing geometry pushed into a roughing cut will chip. Match it to the feed you will actually run — chipbreaker selection guide.
Typical applications
- 精加工
For more on cutting steel, see our material-specific guide.