Periodontal scalers are dental instruments used in the prophylactic and periodontal care of teeth (most often human teeth), includingscaling and root planing. The working ends come in a variety of shapes and sizes, but they are always narrow at the tip, so as to allow for access to narrow embrasure spaces between teeth. Scalers have scraping edges on both sides of their blades thereby get easily fit to mesial and distal surfaces of the tooth. Scalers give best result when their working end is angled slightly toward the surface of the tooth. Hand Scalers set is used to remove large bulky supragingival deposits of plaque or calcified material. scalers are Very effective for interproximal areas. There Shank angulation provides accessibility to all anterior and premolar surfaces. scalers are manufactured Using a superior heat treatment process, enhanced finishing process and an optimized steel. These are Super-thin, have contra-angle design. Double-ended & have easy-grip handle. Sickle scaler is most commonly used for root planing and scaling procedures such as removing calculus above and below the gum line.