Corner Spline Cutting Jig for Routing

A sled for creating external corner grooves in boxes, frames, drawers, etc. These grooves strengthen the glued corner joints and add a unique charm to the entire project.

The sled’s special design makes it easy to create a cut in the corner of the workpiece, into which a spline (corner spline) of the same shape is placed and aligned with the frame walls.

The jig is equipped with a cam clamp and stop to securely hold the workpiece during operation.

The sled features a two-stage height adjustment for the profile spacing that keeps the material above the saw blade or router bit (the corner of the frame is positioned either 2mm or 15mm above the work surface).

Advantages of external corner splines:

• They strengthen glued corner joints.
• They add an interesting, unique design to each project—cuts and splines can be made with a table saw straight or angled, as well as with router bits, such as dovetail bits. Using contrasting spline material adds distinctive character to the project.

Jig specifications:

• Width: 285mm
• Length: 280mm
• Height of frame corner above work surface: 2mm or 15mm