Abstract: A straight edge clamping device for clamping workpieces is provided. The device comprises a straight edge having a flat lower surface for contacting workpieces, an upper wall, and two sidewalls, a first stop fixed at one end of the edge, a second stop movably provided along the edge, and a clamp for holding the workpieces together. The walls of the edge define an open channel. The second stop has a body movably received in the channel of the edge and having a shape reverse to the shape of the channel of the base so that the body and the channel interlock. The upper wall of the base has one or more recesses, and the body of the second stop has mating projections so that the recesses and the projections interlock.

Abstract: A pocket hole drilling and screw installation jig for workpieces is provided. The jig comprises a bar-shaped base having a flat surface to contact workpieces, a fixed stop and a movable stop to secure workpieces, a clamp for holding the workpieces together; and a fixed or movable drill guide for guiding a drill for forming a pocket hole. The drill guide has a body, and through holes obliquely formed in the body. The body has a flat lower surface, which is flush with the flat surface of the base. Each of the through holes forms a drill guide portion having a lower end and an upper end. The lower end terminates flush with the lower surface of the body. A stop flange limiting the movement of a drill bit forming pocket holes is provided at the upper end of the drill guide portion.

Abstract: A straight edge clamping device for clamping workpieces is provided. The device comprises a straight edge having a flat lower surface for contacting workpieces, an upper wall, and two sidewalls, a first stop fixed at one end of the edge, a second stop movably provided along the edge, and a clamp for holding the workpieces together. The walls of the edge define an open channel. The second stop has a body movably received in the channel of the edge and having a shape reverse to the shape of the channel of the base so that the body and the channel interlock. The upper wall of the base has one or more recesses, and the body of the second stop has mating projections so that the recesses and the projections interlock.