ACME 913 is a CNC-machined 3-blade Nibral propeller designed for ski and wakeboard boats. With a 13.00? diameter and 10.50? pitch, it offers strong hole shot, smooth power delivery, and efficient performance-ideal for both recreational and heavily weighted setups Diameter13.00″Pitch10.50″Cup.060″Hub Length02.750″Bore1.00″Blades3RotationLeft