Replacement Propeller, Propeller Dia. (In.) 24 in, Bore Dia. (In.) 5/8 in, Bore Dia. (mm) 15.87 mm, Pitch 17 Degrees , Rotation CW, Hub Location Centralized, Number of Blades 3, HP 3/4 hp, RPM 1702 RPM, Drive Type Direct, Blade Material Aluminum, For Use With 10D991D