A core drill that looks like it was made in the future - for tasks in the present. Enjoy the certainty that our models with the black, cobalt-containing coating will take on any challenge - because the RQX-coated version is particularly durable and has excellent thermal hardness. Other plus points: the 19 mm Weldon shaft, special steel and the high-performance serration with pre- and post-cutter. The highest quality core drills are compatible with machines from ALFRA Rotabest, DBS, Bux, Ruko, Magnetor, Euroboor, Universal, Nitto, Jancy, Hougen, Magtron, Promac, Rotabroach and with all other drills with Weldon shank.