The Omnigrid 15? x 15? ruler is used to cut and check large 45º triangles, and to cut large rectangles when quilting.
In general, Omnigrid square rulers are used for secondary cutting of strips, and to square up finished quilt blocks
Use with a rotary cutter or a straight-edge blade
The 15? x 15? ruler has the following standard Omnigrid features:
Diagonal angle line
Edge markings for accurate measuring
Laser cut edges for smooth, deep cutting
Patented double-sight lines that show up on light and dark fabrics
Heavy-duty durable acrylic material
Left- and right-hand numbering and angle system