Water well drill pipes & DTH drill rods:OD 42-127mm 1.Dia : 42, 50, 60,73,76,89, ... .Large in stock Water well drill pipes & DTH drill rods:OD 42-127mm 1.Dia : 42, 50, 60,73,76,89 ... & API drill rods Water well drill pipes & DTH drill rods:OD 42-127mm