I would caution very strongly against using any tools, especially tweezers, for this task given the proximity of the shutter curtain.
Over time and with plenty of use, loading and unloading the 67 will become second nature—it has to. To many new users, including me, loading the beast was a fumblefest—but it is not now. You have to learn to drive a car. You have to learn to type and use a computer. Loading a 67 has initially daunted the brave. The mistake many photographers make is removing the paper security tab of a new roll of film BEFORE they have seated the roll in the chamber! Best practice is to seat the roll of film in the chamber (orientating the hole in the film roll with the nib at the top of the chamber speeds the process up), lock the roll in place and THEN remove the security tab and, index finger and middle finger placed at top and bottom of the new roll of film to provide tension, pull out the leader to feed it into the take-up spool. Not rocket science but as I said, like so many other things correct technique once mastered will make things a breeze—even in the worst conditions.