Are the pencil mechanisms interchangeable? August 10, 2023 04:52 Updated Yes. The Schmidt DSM2006 0.5mm and 0.7mm pencil mechanisms can be swapped in all of our Pencils. We offer replacement mechanisms in our Spare Parts collection. Related articles I dropped my pen, can you fix it? I lost the bolt, what can we do? Using a D1 ink refill in Mini lengths How to open a Bolt Action pen for cleaning Slim Bolt Action or Slim Side Click jammed ink refill Comments 0 comments Please sign in to leave a comment.