ARTC1003 Features: * Switchbox blade * Unique cutting action creates little fly dust, protecting the user and promoting a cleaner work environment * High-precision cutting of square holes without overcutting corners * Blade features resharpenable tungsten carbide teeth * Suitable for mortar, soft to medium hard brick, aerated concrete block, limestone, fiberboard, weatherboard and composites * Ideal for single brick removal and toothing of brickwork * Used for installing small electrical switch boxes into plaster and brick/masonry walls Dimensions: * Overall dimensions: 9"" H x 0.28"" W x 4.75"" D, 1 lbs Collection: * Masonry collection