Dovetail joint box work. It offers the strength found in the dovetail joint but is totally hidden from both outside faces by forming the outer edge to meet at a 45-degree angle while hiding the dovetails internally within the joint. The mitred corner dovetail joint is very similar in design, but it has just a single dovetail and is used for picture frames and other similar joins. The secret double-lapped dovetail is similar to the secret mitred dovetail, but presents a very thin section of end grain on one edge of the joint. Used for carcass and box construction to hide the
Dovetail rail Dovetail rail A dovetail rail or dovetail mount can refer to several types of brackets found on firearms primarily for mounting sights. Dovetail "rails" usually refer to any rail with a inverted trapezium (dovetail) cross-section (though the hexagonal-profiled Weaver rail and Picatinny rail are also derivative dovetail designs) running parallel to the bore for mounting a scope or diopter sight to a rifle. These are sometimes also called "tip-off" mounts, and allow the user to easily take on or off the sight. "Dovetail mount" can also refer to a dovetail track running perpendicular to the bore, see "Other uses" below.