Use this to enable aligned drilling of the Flite board prop to 12mm, the guide should clip over the prop and maintain the drill bit alignment. Mark the bit depth at 110mm. The 6 holes on the side of the cone are for optional hot glue to secure it in place whilst drilling. I found they were unnecessary. Wear a glove while drilling, and predrill the print before securing to the prop.
1/8/24 Added a step file of the original dimension and 2x 3mf files of larger tolerance options.
The author marked this model as their own original creation.