
LNHU 090404 Milling Inserts
Compare suitable materials and applications, then choose a brand to view the exact SKUs.
- ISO Code
- LNHU090404
- Insert Size
- 090404
- Shape
- L
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Brands
All available options for this parent model.

LNHU 090404 is a rectangular 90° milling insert with 2 usable cutting edges, used mainly for grooving, parting and shoulder work. We list 8 stock-keeping variants of it from Achteck, covering Steel, Stainless steel, Cast iron, Non-ferrous.
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 LNHU 090404.
Geometry and dimensions
| Insert family | LNHU |
|---|---|
| Category | Milling Inserts |
| Shape | rectangular 90° (L) |
| Usable cutting edges | 2 |
| Inscribed circle (IC) | 4.5 mm |
| Thickness (S) | 7.5 mm |
| Nose radius (RE) | 0.4 mm |
| Fixing hole diameter (D1) | 3.5 mm |
| Hand | Right |
| Variants in stock | 8 |
| Brands | Achteck |
Cutting data
The 8 variants of LNHU 090404 listed here are supplied without a full published cutting-data set, so we do not publish one. Ask us for the specific grade and chipbreaker you are considering and we will send the manufacturer's window for it.
Carbide grades available
8 variants of LNHU 090404 are stocked in these grades: AP351U, AP403M, AW100K, AC301K, AP251K, AP251U.
Across this range the grades specified most often are AP351U, AP403M, AW100K, AC301K, AP251K. 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 LNHU 090404: MR2, MM3, FM2.
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
For more on cutting steel, see our material-specific guide.