Starter Rod Designed to make a connection with assembly of transmitter housing and facilitate the pilot bore drilling Part number FORWARD HDD rig Diameter 03-01-011-21-0711 RX11×44 54 mm 03-01-022-21-0711 RX22×80/RX33×120 82 mm 03-01-040-21-0711 RX40×160 95 mm