There are those that say:"Jesus had a beard". Well they did not have scissors or razors or electric shavers. If they did they would not have had beards.
They had sharp blades like any other culture with steel, shaving was done with a single edged blade cut throat style if they hadnt already indeed invented the hinged opposable blades like scissors for longer hair and beards. Otherwise why the references to trimming the side locks etc in their laws if they were unable to do so?