8-piece countersink bit set in a stable plastic box for countersinking and deburring. The hexagonal shaft ensures very good power transfer and allows for rattle and score-free working. It offers perfect chip removal and great durability. The high-quality, ergonomic bit holder is equipped with a magnet, and the Rapidaptor allows for rapid bit changes without any extra tools. This set is suitable for insertion in a power screwdriver or for use in the chuck of an electric drill.