Wooden storage box with 5 Heller Forstner universal wood drills with diameters of 15, 20, 25, 30, and 35 mm. The Forstner Universal is a professional precision Forstner bit designed for accurate results in any type of wood. It is particularly ideal for blind hole drilling in solid wood and wood-based materials. The serrated outer cutting edges and two main cutting edges ensure precise drilling even near edges. The precision-ground centering tip allows for exact starting of the hole. The Forstner bits are 90 mm long and have a shank diameter of 9.5 mm. Therefore, these bits are suitable for quick-change or keyless chucks.