Cuts smooth, clean, accurate holes up to 25 mm thick through dry wall, wood and plaster;9.5 mm Mandrel;6 mm Drill bit with mandrel;Drive plate and hex key;Cutting cup size consists of 22 mm, 25 mm, 32 mm, 38 mm, 44 mm, 51 mm, 64 mm, 76 mm, 89 mm, 102 mm, 127 mmRolson