Half square triangles (HST) add versatility to your fabric art projects and are key in thousands of quilting patterns. Instead of measuring and cutting them yourself, let the GO! Half Square Triangle-2 1/4" Finished Square die help revolutionize how you quilt. This die is designed to use with AccuQuilt Fabric Cutters. These state-of-the-art machines cut accurately, effortlessly and 90% faster than using a rotary cutter. Since the GO! cutters slice cleanly through several layers of fabric and once, you have perfect carbon copies of your HST in a hurry. This die is compatible with the GO! Baby, GO! and GO! Big Fabric Cutters. It's sold separately here and is also found in the GO! Qube Mix & Match 9" Block.