INDEXABLE INSERTS
SDMT Milling Inserts
Compare SDMT parent models by material and application before choosing a brand.
SDMT Achteck
SDMT 09T308
SDMT 09T308 indexable milling inserts. 14 available options.
SDMT Achteck
SDMT 09T320
SDMT 09T320 indexable milling inserts. 12 available options.
SDMT Achteck
SDMT 120408
SDMT 120408 indexable milling inserts. 17 available options.
SDMT Achteck
SDMT 120420
SDMT 120420 indexable milling inserts. 1 available option.
SDMT Achteck
SDMT 120425
SDMT 120425 indexable milling inserts. 2 available options.
SDMT Achteck
SDMT 120430
SDMT 120430 indexable milling inserts. 1 available option.
SDMT HADSTO
SDMT 1205ZTN
SDMT 1205ZTN indexable milling inserts. 2 available options.
SDMT HADSTO
SDMT 1505ZTN
SDMT 1505ZTN indexable milling inserts. 2 available options.
No matching parent models.
SDMT is a square milling geometry, used on face mills and shoulder cutters. There are 10 sizes in this family and 58 insert variants in stock, covering Steel, Stainless steel, Cast iron, Heat-resistant alloys.
Sizes in this family
Every SDMT 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 |
|---|---|---|---|---|---|
| SDMT 120408 | 12.7 | 4.76 | 0.8 | 17 | P, M, K, S |
| SDMT 09T308 | 9.53 | 3.97 | 0.8 | 14 | P, M, K, S |
| SDMT 09T320 | 9.52–9.53 | 3.97 | 2 | 12 | P, M, K, S |
| SDMT 09T304 | 9.53 | 3.97 | 0.4 | 4 | P, M, K, S |
| SDMT 120412 | 12.7 | 4.76 | 1.2 | 3 | P, M, K, S |
| SDMT 120425 | 12.7 | 4.76 | 2.5 | 2 | P, M, S |
| SDMT 1205ZTN | — | 5.56 | — | 2 | P, M, K |
| SDMT 1505ZTN | — | 5.56 | — | 2 | P, M, K |
| SDMT 120420 | 12.7 | 4.76 | 2 | 1 | K |
| SDMT 120430 | 12.7 | 4.76 | 3 | 1 | K |
Grades stocked in this family
AP251K, AP251U, AP403M, AP351U, AC151K, AP351M, AC301K, AC251P, AP351S, HS5120, HS5130, 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, MR2, MM3, FM. The chipbreaker defines the feed window — chipbreaker selection guide.
Typical operations
- Face Milling
- Chamfer Milling
- Slot Milling
- Ramp Milling
- Face milling
- Chamfer 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.