The Go! Half Square Triangle - 4” Finished (55031) You will never make HST (Half Square Triangles) with a ruler and rotary cutter again! Now you can cut multiple 4” HST in record time! This die cuts two hst at one time. All of the dies include a ¼” seam built into the die and dog eared corners (if applicable). This is a great way to use up scraps and make a quilt top quickly. The Accuquilt Go! can cut up to 6 layers of quilting fabric at one time even if you have it pre-fused.