The 4-piece Alpen Multi-Purpose Drill Bit Set Profi Multicut is a versatile tool set with a diameter range of 6 to 16 mm and a length of 450 mm. It has been specifically designed for use in a variety of materials such as tiles, masonry, metal, and plastic. Its patented 4-step profile ensures effective chip removal and increases work efficiency. The diamond-ground, extra sharp cutting edges guarantee precise drilling results, while the special SDS-plus shank design with automatic impact stop function extends the lifespan of the drill bit and minimizes wear.