Hi, again with questions. If I want to make kind of a small wing saying 10"x3"x1/4'' with a foil shape (on wood or plastic), What bit should I use? - for a router 20Krpm -. If I give the information to the program the bit I'll use is 1/4", is this going to work?, o I rather chage to a bit 1/8"?. What kind of shape on the bit itself?. Where can I find some information about how to make works on my router?

Thanks