INDEXABLE INSERTS
SEMT Milling Inserts
Compare SEMT parent models by material and application before choosing a brand.
SEMT HADSTO
SEMT 1204AFTN
SEMT 1204AFTN indexable milling inserts. 2 available options.
SEMT HADSTO
SEMT 13T3AGTN
SEMT 13T3AGTN indexable milling inserts. 2 available options.
No matching parent models.
SEMT covers 3 insert sizes in a square milling geometry, used on face mills and shoulder cutters. We stock 19 variants across the family from Achteck, HADSTO, published for Steel, Stainless steel, Cast iron, Heat-resistant alloys.
Sizes in this family
Every SEMT 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 |
|---|---|---|---|---|---|
| SEMT 12T3 | 13.4 | 3.97 | 1.5 | 15 | P, M, K, S |
| SEMT 1204AFTN | — | 4.76 | — | 2 | P, M, K |
| SEMT 13T3AGTN | — | 3.97 | — | 2 | P, M, K |
Grades stocked in this family
HS5120, HS5130, AC151K, AP251K, AP403M, AP251U, AP351M, AP403S, AC251P.
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
FM, MM3, MM4, MR6. The chipbreaker defines the feed window — chipbreaker selection guide.
Typical operations
- Face Milling
- Face 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.