The Doofor 560 is the primary drifter for Word Rock Drills. Crowder Supply supports your Word Rock Drill with multiple variations of Doofor 560 striking bars for top hammer drilling, available in male and female thread. We offer standard 63mm and extended 100mm flushing sections. Paired with our Rotojec body and Rotojec shank, the Doofor 560 striking bar adapts to a multitude of drill steels or hollow bars for quarry and construction applications.