Marti Michell Corner Trimmer

The Marti Michell Corner Trimmer is a 45-degree acrylic quilting template designed to trim the corners off right-angle triangles and squares before piecing them into a quilt top. Trimming corners with this tool promotes accurate seam alignment, eliminates bulky 'dog ears' at points, and reduces fabric bulk at intersections, making both hand and machine quilting easier.

This notion is ideal for quilters who regularly piece half-square triangles, flying geese, or other angled patchwork blocks and want cleaner, flatter seams. To use it, simply align the template over the corner of your cut fabric piece and trim along the edge with a rotary cutter or scissors. No batteries or additional equipment are needed—just the template and standard cutting tools already found in most sewing rooms.