Glass bead molding to hold panes in place is a careful and precise application, demanding professional attention to detail and clever design. A plate attached to the cap of this Omer 21 gauge narrow crown stapler provides the exact Set Back you want to tilt the tool at the proper angle. Well done Glass glazing is a stapler's most challenging summit to reach and OMER 4097 G glazing stapler has likely "conquered the Everest". Always at the PEAK of the game.