dadiOH wrote:
Greg Guarino wrote:

I see that those are center-cutting. I'm trying to determine if
that's necessary for wood use. And the price for 1/2" is pretty
eye-popping.

You do know that you can cut mortices with plain jane straight bits,
right? Easiest if most of the area is drilled out and just cleaned up with
the straight bit but they can do the whole thing. And there are numerous
that are pretty long.

If you just gotta have spiral, here are some that are - perhaps - a
bit less less eye-popping.
http://www.highlandwoodworking.com/J...outer-Bit.aspx

http://www.carbideprocessors.com/sea...bit&x =12&y=5

And, of course...
http://www.amazon.com/s/ref=nb_sb_ss...ral+router+bit

Or even these. One of each, just $14.95
Harbor Freight has the same thing.
http://www.amazon.com/Drill-Master-S...ral+router+bit