IADC 545/542
Metal Drilling, Masonry Drilling, Well Drilling
Roller-Ball-Roller-Thrust Button/Sealed Bearing/Op
Jet Air
Inner and Nose Rows: Conical
3 1/2" API
159mm (6 1/4")
20kg (44 Lbs)
TANK
Wooden Box
159mm (6 1/4")
China
