I have a lot of Dremel bits (1/8" shaft) and I was trying to find a better mobile storage method. I got a plastic toolbox and I printed this matrix to hold the bits white the rest of the stuff goes in the top of the tool box. Magnets will be inserted to hold the bits from falling out when (not if) the box gets tipped over. Holds 36 bits.You will need 36 1/8" x 1/4" magnets (ebay around $15 for 50). Print the part as normal, then use glue to glue a magnet down in the bottom of each hole. Make sure not to get too much glue on the walls or top of magnet. The bits then drop inside the hole and touch the top of the magnets holding them securely in place. 2 ears with holes are on the sides in case you want to bolt it down.