Gridfinity Drill Caddy, Fits 3/8" down to 1/16" drill bits, 3 Hex step drills, a hex chamfer bit, a center punch, a hole marker, and a set of hex hole punches. This was 99% of everything I was reaching for when drilling holes on my various hobby stuff. It's based on a Gridfinity 2 unit x 2 unit base, with the addition of a 12mm screw on counter sunk magnet in each unit (my preference. All of the tool holes are meant to be loose fitting, so you don't have to wrestle them in or out. Most of the tools can be bought on Amazon, or on Harbor Freight Tools