RPMT 1204MO Milling Inserts
Compare suitable materials and applications, then choose a brand to view the exact SKUs.
- ISO Code
- RPMT1204MO
- Insert Size
- 1204MO
- Shape
- R — Round
- Relief Angle
- 11°
Find the Right Option
Select the workpiece material and application. Brand remains optional.
Brands
All available options for this parent model.
A round milling insert with many cutting edges, RPMT 1204MO is stocked here in 2 variants from HADSTO. Published applications cover Steel, Stainless steel, Cast iron. Key dimensions: the standard dimensions of this designation.
Milling inserts are chosen to match the cutter body — lead angle, number of teeth and the geometry designated by the manufacturer. The milling insert selection guide walks through that; this page lists what we actually hold in RPMT 1204MO.
Geometry and dimensions
| Insert family | RPMT |
|---|---|
| Category | Milling Inserts |
| Shape | round (R) |
| Usable cutting edges | many |
| Variants in stock | 2 |
| Brands | HADSTO |
Recommended cutting data
The figures below are the manufacturers' published ranges, aggregated across the 2 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
2 variants of RPMT 1204MO are stocked in these grades: HS5120, HS5130.
Across this range the grades specified most often are HS5120, HS5130. 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.
Chipbreaker geometries
Chipbreakers stocked for RPMT 1204MO: FM.
For milling, the geometry code marks the intended duty — sharper for light cuts and better finish, stronger for scale and interruption. Milling insert selection guide.
Typical applications
- Profile Milling
For more on cutting steel, see our material-specific guide.