Sometimes, standard pallet truck fork with out-to-out or inside-to-inside dimensions don't work for the end user.  For example, the user may need the forks to be wider to pick up oversized pallets or crates, or the forks may need to have a more narrow spread enabling the user to get inside narrow openings.  This modification changes the out-to-out dimensions of the forks to match your needs.  The existing fork width itself stays the same.