This special 12 pce set of super strength alloyed steel forstner bits from CMT include many difficult to find metric sizes of bits. These bits are a high performance stagger tooth design on all larger diameter bits (over 25mm) for clean sharp holes with straight sides and flat bottoms. These bits are ideal for drill presses, electric and cordless drills. Included in this set are 10mm, 12mm, 14mm, 15mm, 16mm, 18mm, 20mm, 22mm, 25mm, 26mm, 30mm and 35mm diameters.