GD1: Removal of supragingival deposits in all quadrants.
GD2: Removal of heavy supragingival deposits. Apply flat end to surgace of teeth.
GD3: Removal of supragingival in all quadrants, including the interproximal and sulcus areas.
GD4: Recommended for the treatment of interproximal spaces and for supragingival scaling.
PD1: Slim and sharp, recommended for cleaning and irrigating of subgingival deposits.
PD3: Recommended for cleaning and irrigating of periodontal deep pockets.