I normally don't do hinges (never had the need).
Anyway I'm building a new A-Frame for my dog agility trainig, and at
the apex I've decided to use some heavy duty hinges so the A- Frame
can be raised and lowered at the apex. I'd like to recess the hinges
(better look, more stability, etc).
So how do I marry a hinge jig with a hinge, and where is the best
place to get such a jig (where template and router bit and sheath are
included)? I presume for different sized hinges I'll need a different
jig? I plan to use only one sized hinge on the A-Frame.

Thanks
Jerry