This handy little tool takes the pain out of notching seam allowances when cutting out patterns. Simply position, squeeze, and voila: a perfect notch! Used by professional pattern drafters, notched patterns are easier to see, especially when pattern pieces need to be flipped upside down. A beloved tool in the Closet Core design studio, you'll never want to un-notch a pattern again! Makes a 1/4" by 1/16" (6.3mm x 1.6mm) notch.