gridfinity stackable bits holder stackable

Gridfinity stackable bits holder For standard 1/4 25mm bits Looser fit to ensure you can grab bits from top

Based on https://thangs.com/designer/the.d.i.y.tinkerer/3d-model/Gridfinity%201x1x1%20Hex%20bit%20holder%20x14.stl-186808