Leister Spatula Quarter Moon KnifeThe Leister Spatula Quarter Moon Knife is used to trim excess welding rod from the seam area after cooling to flush the seam area with the rest of the floor. It is used in a two step process with the Trim Guide. First, insert the trim guide beneath the knife and trim off the bulk of the material on a first pass. Afterward, remove the trim guide and make a second pass with the knife only. The fine cut of the second pass finishes flush with the