The mortise and tenon joint is a popular method of joining two pieces of wood together. The tenon, which acts as a peg, is inserted into a slot or hole known as the mortise. Mortises can be created using various tools such as chisels, drill press or routers, and the tenon can be cut using a variety of tools including hand saws, table saws, routers or chisels. While most mortise and tenon joints are square, round peg shapes are also used. These joints are typically assembled at a ninety-degree angle, but other angles and variations are possible. Glue is applied to the joint to secure it, and sometimes an additional pin, nail or screw is used to increase its strength.