Perfect practical rule for all angles at 60 ° (triangles, semi-triangles, diamonds). Flexible in its use to cut different sizes and formats. Dimensions: 8 INCH (20.32 cm) for right -handed and left -wing and resistant left -handed guaranteeing a safe tracing of the rotary knife. Precise marqual by computerized printing in the laser on the back of the rule. Employment for supplies, bias, equilateral triangle, hexagons, etc.