Make Folded Corners quickly and accurately with the Creative Grids Folded Corner Clipper. No need to draw pencil lines. Use this tool to trim the corner first, and use the raw edge as your seam guide. Because you trimmed the corner with a straight edge, your bonus triangle is ready to sew into a Half-Square-Triangle Block. Use the 45 degree angle for binding strips and creating mitered corners. As with all Creative Grids rulers and templates, this ruler slides easily over the fabric until pressure is applied. Then the exclusive gripper holds the fabric in place while cutting, eliminating slipping and miss-cuts. The package includes fully illustrated step by step instructions.