The Alpen 3 Piece Profi Multicut Hex Set is a versatile and high-performance drill bit set designed for precision drilling across various materials. Whether you're working with tiles, natural stone, metal, wood, or plastics, these tungsten carbide multi-purpose drill bits provide exceptional results. With extra sharp cutting edges and a patented 4-step profile, they ensure fast drill dust feed, even in masonry and concrete. Ideal for professional use, especially in the locksmith industry, this set is suitable for drilling into hard plate and faceplates on mortice locks and cylinders. The 1/4 hex shank is compatible with impact drivers, making this set an essential tool for any demanding job. Brand: Alpen Sizes: 5.0mm, 6.0mm, 8.0mm Material: Tungsten carbide Shank Type: 1/4 Hex Application: Drilling in tiles, natural stone, metal, wood, plastics, masonry, and concrete Carbide Tip: Extra sharp cutting edges, ideal for metal Patented Profile: 4-step profile for fast drill dust f