Thousands of great quilt designs are built around the Half Square Triangle (HST). Which means the GO! Half Square Triangle-4" Finished Square is a smart addition to your quilting die collection. This die cuts perfect half square triangles that finish to a 4" square. Specially designed dog-ear corners and 1/4" seam allowances mean your quilt will be easy to align and smooth once sewn together. Use this die with AccuQuilt Fabric Cutters, including the GO! Baby, GO!, GO! Big and Studio if used with its adapter. You know AccuQuilt Fabric Cutters can cut accurate shapes each time and even through multiple layers of fabric at once. Did you know they cut 90% faster than a rotary blade? This means you'll quickly have a stack of half square triangles ready to go. This die is sold individually and can also be found in the GO! Qube Mix & Match 8" Block.