Drill bit sharpener

I've researched many existing approaches to drill bit sharpening but did not find one that I like. I like simple and utilitarian designs. This is one of those: a one-piece guide for sharpening drill bits on a Dremel or similar rotary tool that uses an M19-2 thread. There are 3 guides included: 90, 118 and 135 degrees. The majority of people will need the 118* and for that the adapter comes in two sizes such that it can easily fit both small and large diameter drills, as well as different diameters in cutting/grinding disks. The adapter prints in one piece without support and is threaded to screw right onto the Dremel (I've tested it on my Dremel 285, 8000 and generic Alltrade tool which all happen to be 19mm thread size). It's also designed to accommodate mandrel upgrades. Addressing some comments: *Doesn't FIT* - check your printer calibration, x/y/z steps/mm and slicer settings (filament factor or extrusion multiplier especially). Print a 20mm calibration cube and measu