The Perfect Hole Primitive
thingiverse
This profile is so good, it has me in tears! Scale as needed, tear drop up to prevent hole sag.
Download Model from thingiverse
With this file you will be able to print The Perfect Hole Primitive with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on The Perfect Hole Primitive.