Studio 180 Design - Tucker Trimmer 1The Tucker Trimmer tool was designed to help quilters quickly and easily trim down units that are made with triangles: half square triangle squares, hourglass units, and other combinations. It has multiple diagonals which allow you to align ruler guide lines with unit seam lines to quickly locate the exact center of pieced units. This makes trim down easy, precise, and perfect every time. No more figuring, or guessing, or struggling to find a center