AOMT 120440 Milling Inserts
Compare suitable materials and applications, then choose a brand to view the exact SKUs.
- ISO Code
- AOMT120440
- Insert Size
- 120440
- Shape
- A
Find the Right Option
Select the workpiece material and application. Brand remains optional.
Brands
All available options for this parent model.
AOMT 120440 — 85° parallelogram milling insert, 2 edges, Steel, Stainless steel, Heat-resistant alloys. There are currently 3 variants in stock from Achteck. Measured across the range: 8.15 mm inscribed circle, 5.07 mm thickness, 4 mm nose radius.
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 AOMT 120440.
Geometry and dimensions
| Insert family | AOMT |
|---|---|
| Category | Milling Inserts |
| Shape | 85° parallelogram (A) |
| Usable cutting edges | 2 |
| Inscribed circle (IC) | 8.15 mm |
| Thickness (S) | 5.07 mm |
| Nose radius (RE) | 4 mm |
| Cutting edge length (L) | 10.6 mm |
| Fixing hole diameter (D1) | 3.9 mm |
| Hand | Right |
| Variants in stock | 3 |
| Brands | Achteck |
Carbide grades available
3 variants of AOMT 120440 are stocked in these grades: AP351M, AP403M, AP403S.
Across this range the grades specified most often are AP351M, AP403M, AP403S. 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 AOMT 120440: MM4.
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
- Shoulder Milling
- Face Milling
- Slot Milling
- Ramp Milling
- Helical Interpolation
- Pocket Milling
For more on cutting steel, see our material-specific guide.