Join Date: Oct 2012
Location: Eastern Kentucky
You can use any size bit on any size wood, depending on what you're trying to achieve. An exception is when using a router freehand where the bit has a bearing. The bearing must ride along the wood's edge, so in order to get the desired results you have to use a bit where the profile cuts what you want and still leaves room for the bearing to ride the edge.
Everything I make from wood is useful. I can soak up spills with the sawdust, and keep warm burning the rest.