... drill bits, drill pipe, Mud pump and stablizers for water well, oil field, construction, geothermal, directional boring, and underground foundation ... of new and used(rebuilt) drill bits used for oil filed, water well. Including tricone bits, PDC bits and drill pipe ... do.3.Deris PDC bits/ PDC bits1) Be used for water well, oil field, underground, construction, geothermal, directional boring 2) Various ...