Core bit for dry drilling with a dust extraction system. Like all the other models in the dry range, this model has been developed for drilling reinforced concrete without water. For mounting on hand-held core drills, it requires the rotating head (see accessories page). The effective drilling length is 300 mm and the overall length, including the connection, is 370 mm. If necessary, it can be used wet on core drills with a direct 1”1/4 male connection.