More good news about the Kerfmaker from BridgeCity tools.

Most new products prices include shipping, so if you buy one for $72 that is
all you pay. I preordered, 1/2 down now and the rest when the tool ships in
2-3 weeks.

I posted a drawing on a.b.p.w of one that you could build your self, I was
strongly considering doing this, actually strongly considering making 3 or
4. Mine as is will allow a joint of 2.125" wide. The BridgeCity Tool
Kerfmaker will allow for a joint up to 2" wide according to Natasha at BCT.