A useful laying out tool made of steel with a satin chrome finish. The beam is graduated in millimetres and has a hardened steel layout edge 40mm wide. The stock is locked into position with a knurled thumb screw. The tool can be used for a variety of marking out jobs from simply running a pencil line down the edge of a board to precisely gauging the length of tenons, the transferring of widths and any repetitive marking or laying out operation. Maximum measuring length 200mm.