Diamond Drilling:
Wire Line
BQ – 36.2mm
NQ – 47.4mm
HQ – 63.3mm
PQ – 84.7mm
Conventional Drilling
TBW – 44.7mm
TNW – 60.3mm
T6146 – 122mm
4 9/16
Percussion Drilling
RC Drilling
Diamond Drilling:
Wire Line
BQ – 36.2mm
NQ – 47.4mm
HQ – 63.3mm
PQ – 84.7mm
Conventional Drilling
TBW – 44.7mm
TNW – 60.3mm
T6146 – 122mm
4 9/16
Percussion Drilling
RC Drilling