Big Horn 19056C 8-Inch Divider Caliper Big Horn flat leg dividers is a useful measurement transfer tool for uneven surfaces; Also great for a variety of uses such as tracing contours and scribing circles into metal Can be used for measuring and transferring precise distances between two points and for drawing The forged steel legs feature hardened points for precise marking of the work piece; An adjusting screw has a self-seating washer and nut to permit quick and positive adjustment Hardened and tempered bow springs and fulcrum spools assure uniform tension without side play while using this flat leg divider This flat leg divider has 8 inch legs and a 8-1/4 inch jaw capacity | Solid nut and washer permits fast and positive adjustment