The Innovative Tools 150mm Concrete Puddle Flange Recess Disc is specifically engineered for precision recessing of the ACTNOW 100mm Rubber Puddle Flange. Designed to recess the flange into concrete in under 30 seconds, it ensures compliance with Australian Standards. Installation is simple—attach the 180mm dust shroud, secure the threaded adapter to the grinder, and ensure all safety measures are in place for efficient and safe operation.