INDEXABLE INSERTS
RPMT Milling Inserts
Compare RPMT parent models by material and application before choosing a brand.
RPMT Achteck
RPMT 1204
RPMT 1204 indexable milling inserts. 7 available options.
No matching parent models.
RPMT is a round milling geometry — the strongest option for roughing and die work. There are 5 sizes in this family and 15 insert variants in stock, covering Steel, Stainless steel, Cast iron, Heat-resistant alloys, Hardened steel.
Sizes in this family
Every RPMT 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 |
|---|---|---|---|---|---|
| RPMT 1204 | 12 | 4.76 | — | 7 | P, M, S, H |
| RPMT 08T2MO | — | — | — | 2 | P, M, K |
| RPMT 1003MO | — | — | — | 2 | P, M, K |
| RPMT 10T3MO | — | — | — | 2 | P, M, K |
| RPMT 1204MO | — | — | — | 2 | P, M, K |
Grades stocked in this family
HS5120, HS5130, AP153H, AP151H, AP251U, AP351U, AC451S, AP403S, AP403M.
The family is published for Steel, Stainless steel, Cast iron, Heat-resistant alloys, Hardened steel. Pick the grade from the group you are cutting — how to read grade names.
Chipbreaker geometries
FM, T1000. The chipbreaker defines the feed window — chipbreaker selection guide.
Typical operations
- Profile Milling
- Face Milling
- Ramp Milling
- Helical Interpolation
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.