About this 3D model

This nice thing attaches to your Dremel and lets you make your own M8 knurled bolts for your extruder. Technically speaking it's a "spiked" bolt, not a knurled one, but it's close enough. :) And yes, the name is supercheesy, but I like it anyway. I made this because the standard Ultimaker knurled bolt doesn't fit the extruder I'm currently designing. It's modelled in 3dsmax, so no openscad files, sorry :( If anybody wants to make a parametric version be my guest.