SWISSCDC MultiBrush by Christian Kuchelmeister Posted on 3. December 202120. December 2021 by Hannes N. The tying-tool-family by ingenious flytier Christian Kuchelmeister in cooperation with SWISSCDC has a new member: the MultiBrush. I had the chance to work with this tool a few weeks prior to the official introduction. Here is my review.