Friedman Micro [2x145mm (0.08x5.71in)] Used for the removal of the sharp edges of the alveolar bone crest after tooth extraction. With a spring (self-opening) design and spoon-shaped sharp jaws at the distal end, it also provides sturdy handles, with one or more pivots that, when squeezed together, close the jaws and grab (cut) the bone tissue.Bone Nibbler – Micro BONE RONGEUR KERRISON mm3x3 BONE RONGEUR KERRISON mm3x3