Dress up your mitered corner joints and add strength, too, with the Rockler Router Table Spline Jig! This clever jig locks into a standard router table miter slot and features a sled that holds your workpiece at a 45° angle while you guide it smoothly past the router bit. The adjustable fences act as stops to position your workpiece—one setting can cut all four slots for a frame, or eight slots for a box. Try different router bits to achieve different effects—straight bits, V-groove bits, dovetail bits and more!