Creative Grids 60 Degree Diamond Ruler Increase your diamond design possibilities with the 60 degree Diamond Ruler. Cut 60 degree diamonds, hexies, and triangles up to 8-1/2 inches. Maximize the design potential by cutting them from strip sets. There are even markings included to cut 120 degree side setting triangles. Total Size - 9-3/4" x 16-1/2"