I have to thickness a couple 100"+ walnut slabs for a dining table. I'm planning to do this with a router on rails.

I was planning to go at this with a 1" bottom cleaning bit, but Amazon's Big Brother search engine found me out and suggested I get this:

http://www.amazon.com/Magnate-Surfac...flattening+bit

Has anyone used a bit like this on a 2hp or 3hp router?


Is it advisable to use a smaller bit so I can take slightly deeper cuts? I have no aversion to cleaning up with a handplane.

Other suggestions of bits to use welcomed.