Professional roughing with CVD-coated P10 carbide
The CNMG...-PR RT215+ turning insert convinces as a reliable and powerful solution for the roughing of steel. By combining a strong negative 80° insert shape with the advanced RT215+ grade, this cutting tool is specifically designed for high material removal rates during full-cutting operations. The specialized PR chipbreaker, combined with continuous cutting conditions, supports smooth chip evacuation and ensures efficient, predictable workflows in metal machining.
Suitable materials

Technical data
- Insert shape: CNMG (80° rhombic)
- Machining application: Roughing
- Cutting conditions: Continuous cut
- Workpiece material: Steel
- Insert grade: RT215+ (CVD-coated P10 carbide of the latest generation for full-cutting operations)
- Packaging unit: 10 pieces
Dimensions of CNMG...-PR RT215+
|
Art. Nr. |
r |
L |
I.C. |
S |
| CNMG 120408-PR RT215+ |
1661710 |
0,8 |
12,9 |
12,7 |
4,76 |
| CNMG 120412-PR RT215+ |
1661711 |
1,2 |
12,9 |
12,7 |
4,76 |
| CNMG 120416-PR RT215+ |
1661712 |
1,6 |
12,9 |
12,7 |
4,76 |
| CNMG 160608-PR RT215+ |
1661713 |
0,8 |
16,1 |
15,875 |
6,35 |
| CNMG 160612-PR RT215+ |
1661714 |
1,2 |
16,1 |
15,875 |
6,35 |
| CNMG 160616-PR RT215+ |
1661715 |
1,6 |
16,1 |
15,875 |
6,35 |
| CNMG 190612-PR RT215+ |
1661717 |
1,2 |
19,3 |
19,05 |
6,35 |
| CNMG 190616-PR RT215+ |
1661718 |
1,6 |
19,3 |
19,05 |
6,35 |
| CNMG 190624-PR RT215+ |
1661719 |
2,4 |
19,3 |
19,05 |
6,35 |
Cutting data
|
Steel |
|
Vc (m/min) |
f (mm/rev.) |
ap (mm) |
| CNMG 120408-PR RT215+ |
140-280 |
0,2-0,4 |
1,5-5 |
| CNMG 120412-PR RT215+ |
140-280 |
0,2-0,5 |
1,5-5 |
| CNMG 120416-PR RT215+ |
140-280 |
0,2-0,5 |
1,5-5 |
| CNMG 160608-PR RT215+ |
140-280 |
0,2-0,4 |
1,5-5,5 |
| CNMG 160612-PR RT215+ |
140-280 |
0,2-0,55 |
1,5-5,5 |
| CNMG 160616-PR RT215+ |
140-280 |
0,2-0,55 |
1,5-5,5 |
| CNMG 190612-PR RT215+ |
140-280 |
0,2-0,6 |
2,5-6 |
| CNMG 190616-PR RT215+ |
140-280 |
0,2-0,6 |
2,5-6 |
| CNMG 190624-PR RT215+ |
140-280 |
0,2-0,6 |
2,5-6 |
Applications
This CNMG insert is oriented towards robust longitudinal and face turning of steel materials. Thanks to the P10 classification and its design for continuous cuts, it shows its strengths primarily in stable full-cutting scenarios, where a consistently high machining performance is required.
Special features
The wear-resistant CVD-coated carbide effectively protects the cutting edge against rapid abrasion, maintaining the dimensional accuracy of the workpiece over an extended period. The strong 80° corner provides sufficient stability to confidently absorb the high thermal and mechanical loads encountered during roughing. With four usable cutting edges, this variant also represents a highly economical choice for professional turning operations.