... , single roller bit, drag bit, hammer union, drill pipe, drill collar, safety clamps, elevator, mud pump and stabilizers for water well, oil ... flush joint pipe and drill collar. there are two kinds of model of safety clamps. Model WA-C Safety clamps can accommodate pipe ... hesitate to contact me,thanks.safety clamps1 It is for handling flush joint pipe and drill collar.2 API Standard3 Material:steel4 ...