This Mega Screw Bit Wall Organizer is the perfect solution for all your screwdrivers and drill bits. It also holds extensions! The organizer can be easily mounted on the wall with 4mm bolts or screws. Long bits are placed at the back and short bits at the front. The largest version is larger than standard 200mm 3D printers, so we recommend 25, 45, 65 and 78 bit holders as they are shorter than 200mm. The 85 piece version is approx. 220mm long.