SNMA 120404 Turning Inserts
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- ISO Code
- SNMA120404
- Insert Size
- 120404
- Shape
- S — Square
- Radius
- 0.4 mm
- Insert Length
- 12.7 mm
- Thickness
- 4.76 mm
- D / IC
- 12.7 mm
- Hole Diameter
- 5.16 mm
- Relief Angle
- 0°
Find the Right Option
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Brands
All available options for this parent model.
SNMA 120404 is a square 90° turning insert with 8 usable cutting edges, used mainly for heavy roughing, square shoulders and interrupted cuts. We list 1 stock-keeping variants of it from HADSTO, covering Cast iron.
The designation encodes the geometry: the first letter is the shape (S), 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 | SNMA |
|---|---|
| Category | Turning Inserts |
| Shape | square 90° (S) |
| Usable cutting edges | 8 |
| Inscribed circle (IC) | 12.7 mm |
| Thickness (S) | 4.76 mm |
| Nose radius (RE) | 0.4 mm |
| Fixing hole diameter (D1) | 5.16 mm |
| Variants in stock | 1 |
| Brands | HADSTO |
Recommended cutting data
The figures below are the manufacturers' published ranges, aggregated across the 1 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.
| Workpiece material | Cutting speed vc (m/min) | Typical vc | Feed fn (mm/rev) | Depth of cut ap (mm) | Variants with data |
|---|
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
1 variants of SNMA 120404 are stocked in these grades: HS6120.
Across this range the grades specified most often are HS6120. 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.
Typical applications
- Medium
- Roughing
For more on cutting cast iron, see our material-specific guide.