This is remix from Thing 2778209
The original was not large enough to hold my Klein Multi-tool, so I enlarged the two outer holes to 13mm and removed the center hole as it would be blocked by the tool's handle anyways.
I also included an 11mm version if the jump to 13mm is too much for your tools.
No supports required.
The user re-uploaded this model. The user is not the original author of the model.