€¢ Can be used for woodwork and metal work €¢ Very compact to fit in your toolbox €¢ Draw inside angles on rebated timber €¢ Mark doors to cut for a mortise lock >> K-Square measuring device, which can be used for a variety of tasks, including drawing 90-Degree and 45-Degree angles without moving the K Square on external and internal surfaces. Draw a straight line along a surface at various measurements and find the centre of a circle with just two strokes. Very compact as it will easily fit in your tool box. Packet contains two squares, one left and one right.