Reduced blade, half the length of the After-Five or Standard Gracey, for better adaptation in narrow pockets and furcations.
Gracey 1/2: Slight contra-angle for anterior incisors and canines
Gracey 3/4: Short contra-angle for anterior incisors and canines
Gracey 5/6: Medium contra-angle for anterior and premolars
Gracey 7/8: Med.-for premolars and molars, facial and lingual surfaces
Gracey 9/10: Long contra-angle for molars. Shank and blade are at an acute angle for less accessible root surfaces
Gracey 11/12: Angulated to reach mesial surfaces of all posterior teeth
Gracey 11/14: Mesial/Distal
Gracey 12/13: Mesial/Distal
Gracey 13/14: Angulated to reach distal surfaces of all posterior teeth
Gracey 15/16: Same contra-angle bends as 13/14, but blade positioned to reach mesial posterior surfaces
Gracey 17/18: Accentuated shank angles and multiple bends. Long terminal shank, offset, angled blades, reduced blade length.