Big Horn 14350 Dovetail Marker Quick, accurate marking of dovetail slopes in one handy tool Complete layout lines for hand cut dovetails with precision and easy using this compact dovetail marker Two Ratios: 1:5 (softwoods) and 1:8 (hardwoods) slopes CNC machined Aluminium with a black anodized finish 1/32 inch graduations slope markings in White