Lower Universal Forceps #151AB, "AB" PatternAB, AS forceps are designed to make maximum purchase on the remaining crown structure, superior to the gum line. The open tipped, parallel beaks include cross serrations on the first 5mm of the tips and a cut away to adapt to the height of contour, which helps prevent fracture of the often broken or brittle crown. Parallel gripping beaks Lateral edge & long axis serrations within the beaks Best coronal purchase Height of contour relief cut out Heavy