... , single roller bit, drag bit, hammer union, drill pipe, drill collar, safety clamps, elevator, mud pump and stabilizers ... handling flush joint pipe and drill collar.2 API Standard3 Material:steel4 Type:WA-C,WA-T.5 WA-C ... accommodate pipe from 3 1/2 to ... I will send the Competition price with Top-quality supply high quality WA-C & WA-T Safety Clamps