On Jan 22, 5:54*am, Mark Whittingham wrote:
I've been using Lee Valley's magnetic corner chisel to clean up hinge
mortises, but I'm wondering if there is a larger version available -
something with a guide like the LV one, only larger, to handle the
radii left by larger diameter router bits. *Anyone know of one?
Thanks.

MW

Porter Cable makes a tool designed for that job. It's called a "Hinge
Butt Corner Chisel" their catalog # 42234.
Joe G