Mercury - Black Max 3-Blade Aluminum Propeller 11.25" Diameter x 10" Pitch Right-Hand Rotation 3 Blades Aluminum Glossy Phantom Black Finish 73132A45. Overview. There's a quiet kind of confidence that comes from using gear that never lets you down-the kind that just works every time you turn the key. That's exactly what you get with the Mercury Black Max 3-Blade Aluminum Propeller. It's built for boaters who care more about performance and reliability than flash and fuss. From slow morning drift