Threading-Geological Drilling- Diamond Core drilling
DESIGNATIONS |
TPI |
H |
L |
APPLICATIONS |
22NR 6DZ |
6.0 |
19.0 |
2.3 |
Casings |
22NR 4DZ |
4.0 |
19.9 |
1.7 |
Outer Tube core barrels, drill bits, reaming shells |