Individual hole saws and hole cutters are used when workers need access to a limited size range or when a size needs to be replaced in a kit. Hole saws and hole cutters remove a ring of material from the workpiece to create a hole. They are designed for cutting multiple materials (multipurpose) or special applications, including cut wood, masonry, drywall, and plastic. Hole saws have a linear-edge blade welded to the cutting edge. Hole cutters have individual cutting teeth (similar to a circular saw blade) and are used to cut metal. Hole cutters usually have a thicker body and fewer cutting teeth than hole saws.