INDEXABLE INSERTS
TDMT Milling Inserts
Compare TDMT parent models by material and application before choosing a brand.

TDMT Achteck
TDMT 150508
TDMT 150508 indexable milling inserts. 9 available options.

TDMT Achteck
TDMT 150512
TDMT 150512 indexable milling inserts. 5 available options.

TDMT Achteck
TDMT 150516
TDMT 150516 indexable milling inserts. 5 available options.

TDMT Achteck
TDMT 150520
TDMT 150520 indexable milling inserts. 1 available option.

TDMT Achteck
TDMT 150524
TDMT 150524 indexable milling inserts. 1 available option.

TDMT Achteck
TDMT 150531
TDMT 150531 indexable milling inserts. 1 available option.

TDMT Achteck
TDMT 150540
TDMT 150540 indexable milling inserts. 1 available option.
No matching parent models.
This is our TDMT range: 7 sizes, 23 variants, Achteck. The geometry is a dedicated geometry for its intended operation. Applications published for the family cover Steel, Stainless steel, Cast iron, Heat-resistant alloys.
Sizes in this family
Every TDMT 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 |
|---|---|---|---|---|---|
| TDMT 150508 | 11.4 | 5.56–5.6 | 0.8 | 9 | P, M, K, S |
| TDMT 150512 | 11.4 | 5.6 | 1.2 | 5 | P, M, K, S |
| TDMT 150516 | 11.4 | 5.6 | 1.6 | 5 | P, M, K, S |
| TDMT 150520 | 11.4 | 5.6 | 2 | 1 | P, M, S |
| TDMT 150524 | 11.4 | 5.6 | 2.4 | 1 | P, M, S |
| TDMT 150531 | 11.4 | 5.56 | 3.1 | 1 | P, M, S |
| TDMT 150540 | 11.4 | 5.56 | 4 | 1 | P, M, S |
Grades stocked in this family
AP403M, AP251U, AP351M, AC301K, AP251K, 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
MM4, MM3. The chipbreaker defines the feed window — chipbreaker selection guide.
Typical operations
- Shoulder Milling
- Face Milling
- Slot Milling
- Ramp 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.