About this 3D model

Customized version of http://www.thingiverse.com/thing:91035 Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=91035 It has just occurred to me that you could either make several of these to accommodate single drill bits or make two or three with each one capable of taking three or four sizes if you use long enough grub screws and are prepared to swop the drill bits as and when needed. EDIT Tried my 8mm version with some different sized drill bits and found that the range of sizes which you can fit securely is not that large - will print some more and use one drill bit per handle. (Total filament with 15% infill is only around 2m anyway).