INDEXABLE INSERTS
SNMM Turning Inserts
Compare SNMM parent models by material and application before choosing a brand.
No matching parent models.
SNMM is a square 90° shape giving eight cutting edges and the strongest edge of any common insert. There are 9 sizes in this family and 87 insert variants in stock, covering Steel, Stainless steel, Heat-resistant alloys.
Sizes in this family
Every SNMM 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 |
|---|---|---|---|---|---|
| SNMM 250924 | 25.4 | 9.52 | 2.4 | 17 | P, M, S |
| SNMM 250724 | 25.4 | 7.94 | 2.4 | 16 | P |
| SNMM 190616 | 19.05 | 6.35 | 1.6 | 13 | P |
| SNMM 190624 | 19.05 | 6.35 | 2.4 | 13 | P |
| SNMM 190612 | 19.05 | 6.35 | 1.2 | 12 | P |
| SNMM 120408 | 12.7 | 4.76 | 0.8 | 5 | P |
| SNMM 120412 | 12.7 | 4.76 | 1.2 | 4 | P |
| SNMM 150612 | 15.88 | 6.35 | 1.2 | 4 | P |
| SNMM 150616 | 15.88 | 6.35 | 1.6 | 3 | P |
Grades stocked in this family
AC152P, AC252P, AC052P, AC350P, AC200M.
The family is published for Steel, Stainless steel, Heat-resistant alloys. Pick the grade from the group you are cutting — how to read grade names.
Chipbreaker geometries
PD8, PD9, PC9, MR. The chipbreaker defines the feed window — chipbreaker selection guide.
Typical operations
- Roughing
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.