Dremel 426B 20 Piece 1-1/4-Inch Reinforced Rotary Tool Cut-Off Wheels Ideal for cutting, grooving and trimming all kinds of metal. May also be used on other materials-including thin wood, plastics and ceramics Cut-off wheels make it easy to cut bolts or screws or make slots in rusted or stripped bolts and screws for removal with a screwdriver May also be used on other materials including thin wood, plastics and ceramics