INDEXABLE INSERTS
SOMT Milling Inserts
Compare SOMT parent models by material and application before choosing a brand.
SOMT Achteck
SOMT 120408
SOMT 120408 indexable milling inserts. 7 available options.
No matching parent models.
SOMT is a square milling geometry, used on face mills and shoulder cutters. There are 1 sizes in this family and 7 insert variants in stock, covering Steel, Stainless steel, Cast iron, Heat-resistant alloys.
Sizes in this family
Every SOMT size we carry, with the measured geometry and how many variants are in stock. Open a size for the full cutting data and grade list.
| Size | IC (mm) | Thickness (mm) | Nose radius (mm) | Variants | Material groups |
|---|---|---|---|---|---|
| SOMT 120408 | 12.46 | 4.8 | 0.8 | 7 | P, M, K, S |
Grades stocked in this family
AC151K, AC251P, AP251K, AP251U, AP351M, AP403M, AP403S.
The family is published for Steel, Stainless steel, Cast iron, Heat-resistant alloys. Pick the grade from the group you are cutting — how to read grade names.
Chipbreaker geometries
MM4. The chipbreaker defines the feed window — chipbreaker selection guide.
Typical operations
- Shoulder Milling
- Face Milling
- Slot Milling
- Pocket Milling
Which size do you need?
- Inscribed circle sets the maximum depth of cut. As a rule keep ap under about two thirds of the IC.
- Nose radius trades finish against strength. A larger radius gives better surface finish at the same feed and a stronger edge, but raises cutting force and cannot produce tight internal corners.
- Check the holder. The holder designation must carry the same shape letter and the same size digit as the insert.