Circular drill holder 1-10mm

This is a drill holder, you can put any drill of 1, 2, 3, 4, 5, 6, 7, 8, 9, 10mm diameter. I precise juste the STL file is not precisely the same about the picture, i have been trying to create a rotative version but it dosen't works. The rotative version turns with difficulty because the load is not evenly distributed due to differents diameters of drills.