Two-cutter drill bits made of HM/CT with a centering tip for precise positioning and an optimized chip removal spiral for fast drilling results. The set includes four drill bits with SDS-PLUS shank suitable for materials such as concrete and brick. The drill bits feature a centering tip that allows for pinpoint accuracy when starting the drill. The set contains drill bits with a diameter of 5 mm and a total length of 110 mm, as well as diameters of 6, 8, and 10 mm with a total length of 160 mm. It comes in a practical storage box with easy access through four swiveling holder sleeves.