Summary This is a drill bit holder to hold a range of drills from 1mm up to 10mm in increments of 0.5mm. In other words, 1mm, 1.5mm, 2mm, 2.5mm etc all the way to 10mm. The holes have an offset of 1mm around the diameter of the holes, so that the drill fits nice and snug. The differnet wording can be printed, steel, masonry or wood drill bits and plugged onto the drill holder. The next step is to make it fit a peg board, but i first need to get my hands on some peg board and measure the holes etc. How I Designed This I draw in AutoCAD 2016 and export to STL format.