The third in the Tucker Trimmerseries of rulers, this version of our Tucker Trimmer is used for any block or unit that is larger than a 6 finished blocksize. It has all of the sizes of theTucker Trimmer 1plus thirteenadditional size options up to and including trimming blocks to 13 (that will finish to 12 when sewn). I love to use this tool to trim down my Lemoyne Star blocks made with myRapid Fire Lemoyne Star tool and any type of block that needs to be trimmed and squared to a specific size. A terrific tool with all the same benefits as the original Tucker Trimmer.