INDEXABLE INSERTS
TCMW Turning Inserts
Compare TCMW parent models by material and application before choosing a brand.

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TCMW covers 4 insert sizes in a triangular 60° shape giving six cutting edges — the lowest cost per edge, at the price of a weaker tip. We stock 8 variants across the family from Achteck, published for Cast iron.
Sizes in this family
Every TCMW 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 |
|---|---|---|---|---|---|
| TCMW 110204 | 6.35 | 2.38 | 0.4 | 2 | K |
| TCMW 110208 | 6.35 | 2.38 | 0.8 | 2 | K |
| TCMW 16T304 | 9.53 | 3.97 | 0.4 | 2 | K |
| TCMW 16T308 | 9.53 | 3.97 | 0.8 | 2 | K |
Grades stocked in this family
AC102K, AC202K.
The family is published for Cast iron. Pick the grade from the group you are cutting — how to read grade names.
Chipbreaker geometries
KD5. 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.
Related
Supplied by Beijing Henglang Precision Tools Co., Ltd.