<https://cinematography.com/index.php?/forums/topic/89650-lens-step-up-ring-stuck-with-little-leverage-room-to-remove-it/#comment-551289>
<http://schema.org/text>
"Try a rubber grip of some sort - I have a variety of tools to remove lens lock rings  most of which I’ve made myself. You can start with rubber dishwashing gloves, or a bath plug, or something like that. I have made some tools using a cylinder with O ring rubber glued to the end. You can put a drop or two of oil in the step up ring threads to help free it. Last resort might be to drill a couple of small holes in the ring and use a lens wrench.\n \n"
<https://cinematography.com/index.php?/forums/topic/89650-lens-step-up-ring-stuck-with-little-leverage-room-to-remove-it/&tab=comments#comment-551289>