What are the advantages of using a PCB Shear Guillotine for cutting FR4 PCB Laminate Material over a conventional saw, bandsaw or circular saw?

When cutting these types of Laminate materials with a Bandsaw or circular saw the blades will become dull or blunt very quickly and there is the risk of the inhalation of very harmful dusts produced from the cutting operation.   The dust can also cause skin irritation.   If using a manual saw it can also be very easy to accidentally scratch the Photoresist coating.  Cutting with any form of saw also has the potential to raise a burr which when exposing the board on the artwork can allow the UV light to leak between the board and artwork.  Using a PCB Shear cutter gives a clean edge to the work piece.