Mercury - Black Max 3-Blade Aluminum Propeller 14" Diameter x 23" Pitch Right-Hand Rotation 3 Blades Aluminum Glossy Phantom Black Finish 832834A45. Overview. If you've spent any time on the water, you know that a good propeller makes all the difference between an ordinary day and one that feels effortless. The Mercury Black Max 3-Blade Propeller has that easy, confident feel boaters trust. It's smooth on takeoff, steady in turns, and holds its bite through chop without hesitation. There's a rea