Replacement Propeller, Propeller Dia. (In.) 24 in, Bore Dia. (In.) 21/32 in, Bore Dia. (mm) 17 mm, Rotation CW, Hub Location Rear, Number of Blades 8, HP 1/2 hp, RPM 1075 RPM, Drive Type Direct, Blade Material AL+PA, For Use With 1BLJ7C