A crown with a hex shank is designed for a drill. It is used for dry drilling of porcelain stoneware, marble, cinder block, brick, tile, glass, wood. Inside crowns with a diameter of 6-14 mm, a special cooling material (wax) is used, technological holes are provided in crowns with a diameter of 16 mm. These technical solutions significantly increase the resource. Material: tool steel, technical diamonds, wax. Packing: blister.