
Marking of grades
M 9 3 2 5
Operation type Coating / Substrate Generation ISO range
0 PVD Special
D Drilling 1 CVD 1 – 9 01 – 05
application
2 PVD
M Milling 3 CVD Free 05 – 10
4 PVD
T Turning 5 CVD Group K, H 10 – 20
Grooving 6 PVD
G and Group M, S 20 – 30
7 CVD Parting off
8 PVD
9 CVD Universal 30 – 40
B CBN 40 – 50
D PCD