I look for efficient designs and, while here are many deburring tool holders already available, none met my criteria. I wanted blade storage, but towards the wall so I'd be less likely to accidently grab a blade while retrieving the tool. I also prefer pins that fit into HSW inserts so they can be placed anywhere instead of only empty hexes. I couldn't find what I wanted, so I made it.

The finished model takes about half the filament of the closest option I could find, while still providing 2mm walls. The back row of blades sits a few mm higher to maximize space. The bottom is chamfered for easy printing and no supports are necessary.

Your printer should be fairly accurate for this model, as the blade holders are close together. On my Ender 3 print, each blade can be easily removed, but they're snug enough that they won't fall out if the holder is held upside down. I didn't have to change retraction or other print settings to get a good result, but YMMV.

I've included the STEP file to make remixing easy. Enjoy!