Wera 845/8 1-flute Countersink Bits Set, 8 pieces8 piece countersink bit set in a stable plastic box for countersinking and deburring. The hexagonal shaft ensures very good power transfer. Ensures rattle and score free working. Perfect chip removal and great durability. High quality, ergonomic bit holder equipped with a magnet. The Rapidaptor ensures rapid bit change without any extra tools. For insertion in the power screwdriver or for use in the chuck of the electric drill. Features Ideal for