The ACME 911 is a CNC-machined 3-blade Nibral propeller designed for direct drive ski and crossover boats. With a 13.00″ diameter and 10.50″ pitch, it delivers responsive acceleration, smooth handling, and consistent performance for all-around recreational use. Diameter13.00″Pitch10.50″Cup.080″Hub Length02.750″Bore1.125″Blades3RotationLeft