Pretty much a beefier router permanently mounted in a solid base. More power, smoother or deeper cuts. Generally used in production shops.I'll claim ignorance, in the woodworking world what is a shaper? What can it do that a router won't do? I'm starting to collect some wood working tools, need to build 100 or so custom wood windows.
Funny, that's why I got mine. Top-of-the-line Delta. I ran off tons of crown and baseboard moldings for our home, but that was like 20 years ago and I have hardly used it since. Was thinking of selling it and as I was researching the market is when it appeared to me folks don't seem to care as much for them any more.You want to make a bunch of custom molding for a house, the shaper is the way to go. You will tire of that router after a few hundred feet of molding.
Not to mention the shaper has a larger radius tool so it will create a better finish while lasting longer.