Mercury - Black Max 3-Blade Aluminum Propeller 10" Diameter x 17" Pitch Right-Hand Rotation 3 Blades Aluminum Glossy Phantom Black Finish 73144A45. Overview. There is a kind of ease that comes when your boat feels perfectly in tune with the water - when every turn, every push of the throttle just flows. That is what the Mercury Black Max 3-Blade Aluminum Propeller brings to the table. It is dependable and steady, made for boaters who care more about how it performs than how it looks. Whether you