Mercury - Black Max 3-Blade Aluminum Propeller 10" Diameter x 16" Pitch Right-Hand Rotation 3 Blades Aluminum Glossy Phantom Black Finish 73142A45. Overview. There's a certain kind of confidence that comes with using gear you can count on - the kind that doesn't need attention because it just works. That's exactly what you get with the Mercury Black Max 3-Blade Aluminum Propeller. It's the prop you bolt on and forget because it performs the way you expect, time after time. Whether you're easing