Originally Posted by baddb1
Do you have any pics of the mod? I'm a little confused on how you did it..
Going out today, to get the tools. I will post a "How to", here. Standby.
Correction; I couldn't find an aircraft counterbore, locally, so I ordered one online. May take a few days to get. Cost about $20, plus S&H, so maybe I will make 4-blade, counter-rotating propellers for modellers. We'll see.