Plunge Router Mortising Jig

For rock-solid joinery on your woodworking projects, a mortise and tenon joint is hard to beat. Unfortunately, using the traditional means of a chisel and mallet to make the joint can be a demanding operation that eats up a lot of shop time but not with this jig. Featuring infinite adjustability, dead-on accuracy, and smooth operation, this shop-made jig may be the LAST mortising machine you’ll ever need to build. And the best part is it can be constructed mainly from scrap plywood.