The shoulder plane has a blade flush with the edges of the plane, allowing trimming right up to the edge of your workpiece. The shoulder plane can used to trim the shoulders and faces of tenons. It is also used when you want to trim right into the corner where two surfaces of the same piece of wood meet perpendicularly. It is also commonly used to clean up dadoes or housings and tenons for joinery. Check out our range from Clifton and Veritas.