The DS-6 Drywall Saw is just what you would want from the classic wall penetration tool.  Aggressive cutting teeth (8 per inch) cuts easily and accurately through most wall coverings, such as Gypsum, Masonite, wood and plywood.  It is a must have for the professional installer.  Add the EZ-Cut leveling template and you are ready to install the single or double gang "old work" boxes!