- For the removal of supragingival / subgingival calculus. - All langer-universal curettes have the same angulation as the gracey's, but have two cutting edges. - Langer 1/2 . - Premolars and molars. - Mandibular. - JakobiBasic handle #4. - Stainless steel. - Completely sterilizable. **For further product information, please contact Chat Support**