good eye on the fluted tapered recesses around it. Could very well be a bit... had to be cut down a LOT and I'm not sure the center hold extends that farView attachment 1368195
I was looking over this picture tonight, trying to figure out what the little greeblie on the clamp section is. And I had an idea that it might be a security screwdriver bit, that's been turned down on a lathe.
View attachment 1368196
I don't think this part was made from scratch, and looking at these pics, the part looks steel, as apposed to all other materials on the prop.
Yes. I think that this rounding that you're seeing is the result of a thick glossy paint.
Someone on facebook thought that greebly on the clamp was a security screw for some Nintendo console. I've ditched facebook so can't search in the groups but I'm sure it's in the Thin Neck group.