G e e The Leonard Tools WT-12 is a wall box template specifically designed for cutting cut single and double gang boxes. The built-in labels assist in positioning the template so boxes are straight Avery time, The WT-12 is says to use. Simply locate where you wish to install your wall box. Place the WT-12 against the wal and use the level to insure the box is straight. Either hold in place with ong hand or the template can be screwed into place urging the two holes.