![Rockler Perfect Dado Jig](https://www.woodworkersjournal.com/wp-content/uploads/363WSRocklerPerfectFitDadoJig.jpg)
Rockler’s Perfect Dado Jig is a router guide that helps create dadoes from 1/2-in. to 1-in. wide. Predrilled for standard three-hole-pattern routers, the Perfect Dado Jig is infinitely adjustable between 1/2-in. and 1-in. widths and features a measuring gradient for reference, which allows the craton of dadoes to match the thickness of any plywood. It’s designed for use with any 1/2-in. router bit, but can also be used with smaller straight bits to create dadoes less than 1/2-in. wide. Once the Perfect Dado Jig is set at the desired dado width, using it is as simple as moving the All-in-One Clamp Guide and running the router and jig down and back again. The Perfect Dado Jig (item 59443) is priced at $44.99. (All-in-One Clamp Guides are available in 24-in. to 99-in. lengths, with prices ranging from $41.99 to $113.99.)