Mercury - Black Max Propeller 10.75" Diameter x 12" Pitch Right-Hand Rotation 3 Blades Aluminum Glossy Phantom Black Finish 816702A45. Overview. There is a reason you see so many Mercury Black Max propellers out on the water - they've earned their reputation through years of dependable performance. The Mercury Black Max 3-Blade Aluminum Propeller (10.75" x 12") is the kind of gear that makes boating feel effortless. It's smooth, responsive, and ready for whatever your weekend brings, from quiet