The Grainger 14D114 is a 14-inch diameter, 3-blade, aluminum propeller for small aircraft. It has a pitch of 18 inches and is designed for engines up to 65 horsepower. The propeller is constructed from heat treated aluminum alloy for strength and durability. It uses a standard 5/16-inch bore size to fit most small aircraft engines. The propeller blades can be adjusted to fine tune the pitch. Overall, this is a high quality fixed pitch propeller well suited for many small piston engine aircraft.