Bottom LineThe LEIGH RTJ400 Router Table Joinery Jig deserves serious consideration if you want an alternative to a traditional bench-mounted dovetail jig. It's easy to set up and makes precise, accurate joinery easy on your router table. It's extremely versatile and you can cut full & half pitch through dovetails, half-blind dovetails and box joints (finger joints) in a number of different sizes on boards up to 16" wide. Even though the jig can cut many different kinds of joinery, each setup is simple to achieve, and it’s straightforward to switch from one setup to another when needed. The LEIGH RTJ400 Router Table Joinery Jig has all the usual attention to detail and build quality that characterize all of Leigh's woodworking products.