Standard Gracey 1-2 by InstruDents X is used for removing deep subgingival calculus from incisors and molars. It is also used to finish subgingival root surfaces. It has a round cutting tip with working surface that is inclined at a 20° angle to the lower shank and one curved cutting edge. Gracey 1-2 is primarily used on incisors. For removing calculus, apply moderate pressure and for root planing light pressure and make sure the lower shank of Gracey curette is parallel with the tooth surface.