Forstner drill bit set 15-35 mm, includes sizes 15, 20, 25, 30, and 35 mm. Each drill features a center point, two main cutting edges, and a serrated rim blade in a wave pattern. The cylindrical shank has three clamping surfaces, starting with a diameter of 15 mm. Made from alloyed tool steel, these bits can be resharpened and are suitable for softwood, European hardwood, particle board, and MDF. The set comes in a wooden case.