... .EW,AW,BW,NW,HW Drill Rod 4.Tapered Drill Rod Core Drill RodDrill Rod & Coupling (AQ,BQ,NQ,HQ ... ,PQ Drill RodEW,AW,BW,NW,HW Drill Rod )Geotool drill rods are manufactured from cold drawn ... flush-coupled and a coupling is supplied with each rod length. Unless other wise shown on the following ... rods E,A,B,N, are available on request. Left hand threaded rods are available to special order. Core ...