I just bought a slightly used Klaus 2 blade composite prop. The bolts are 3/8 (.375) and I need to drill them out to 7/16 (.4375).
I plan to make a drill fixture plate for the top and bottom, align it with step pins, and hold them together with a bolt.
It will then be put on a drill press so it can be hand drilled.
I read in Rutan plans that you have to dull the drill point flutes so it won't grab the composite layer.
Does anyone have any other advice, or know what RPM I should use for the drill?
thanks in advance
