What can the SharperBlade cut? As a general rule, the SharperBlade can cut anything that standard nylon string can cut, but without the hassles of pounding and re-stringing. Related articles What jobs can I do with my SharperBlade? How do I know if the SharperBlade will work on my Weed Whacker? My SJH904E Hedge Trimmer isn't operating properly, what do I do? What is SharperBlade?