Use for 90 degree rail joints with rail profiles as small as 1.5″ round.
Requires yellow glue. Clean excess glue with water.
Use 5/8″ drill bit & drill A 1/2″ deep hole in both sides of the Joint. Attach a spring to the bottom of both holes. Apply thick layer of glue to both sides. Insert the pin in either spring and twist together. Once the pieces are together twist 1 turn to create the clamping pressure needed to make the joint permanent. Align the pieces quickly. Allow several minutes for the glue to set before moving the joint. (Click on VIDEO below)