It's a cool idea but tools are not compressed nearly enough; look into how maxpedition organizer does it https://www.maxpedition.com/cdn/shop/files/0246B_a07_4a2d1c0...

it essentially have "a strap on a strap" (and a pouch behind it), which means tools can be interleaved in position, leaving far smaller gap between the tools while still giving each one its own mounting.