Professional turning operations with the TCMT...-HM RT300
The positive indexable insert TCMT...-HM RT300 is a well-conceived solution for demanding users who value flexibility and cost-effectiveness. Thanks to the specially formulated PVD coating, this carbide insert offers excellent prerequisites for medium machining tasks. Its universal application range in unalloyed and alloyed steels as well as stainless materials makes this cutting tool an essential asset for daily manufacturing processes.
Suitable materials

Technical data
- Shape: TCMT
- Processing: Medium machining
- Cutting conditions: Continuous and light interrupted cuts
- Grade: RT300 (PVD-coated carbide for P15-P25 and M10-M25)
- Packaging unit: 10 pieces
Dimensions of the indexable insert TCMT...-HM RT300
|
Item Nr. |
L |
I.C |
S |
d |
r |
| TCMT 110202-HM-RT300 |
1771252 |
11 |
6,35 |
2,38 |
2,8 |
0,2 |
| TCMT 110204-HM-RT300 |
1771253 |
11 |
6,35 |
2,38 |
2,8 |
0,4 |
| TCMT 16T304-HM-RT300 |
1771254 |
16,5 |
9,525 |
3,97 |
4,4 |
0,4 |
| TCMT 16T308-HM-RT300 |
1771255 |
16,5 |
9,525 |
3,97 |
4,4 |
0,8 |
Cutting data
|
Steel |
Stainless Steel |
|
Vc (m/min) |
f (mm/rev.) |
ap (mm) |
Vc (m/min) |
f (mm/rev.) |
ap (mm) |
| TCMT 110202-HM-RT300 |
90-180 |
0,05-0,2 |
0,25-2,5 |
90-170 |
0,05-0,2 |
0,25-2,5 |
| TCMT 110204-HM-RT300 |
90-180 |
0,05-0,2 |
0,25-3 |
90-170 |
0,05-0,2 |
0,25-3 |
| TCMT 16T304-HM-RT300 |
90-180 |
0,05-0,2 |
0,25-3 |
90-170 |
0,05-0,2 |
0,25-3 |
| TCMT 16T308-HM-RT300 |
90-180 |
0,05-0,2 |
0,5-3 |
90-170 |
0,05-0,2 |
0,5-3 |
Applications
This versatile indexable insert was specifically developed for longitudinal turning, facing, and profiling in medium machining applications. Its geometry and the tough carbide grade are highly suitable for continuous cuts, but also handle light interruptions reliably. It is predominantly used in single-part and series production on modern CNC lathes, where dependable tool life is required when machining structural, tool, and stainless steels.
Special features
The universal PVD coating of the RT300 grade increases wear resistance, while the stable chipbreaker geometry ensures smooth chip evacuation. A practical packaging unit of 10 pieces facilitates straightforward inventory management. This balanced combination of toughness and wear resistance opens up flexible deployment options across varying materials.