Mercury - Vengeance 3-Blade Stainless Steel Propeller 10.25" Diameter x 15" Pitch Right-Hand Rotation 3-Blade Stainless Steel Polished Finish 855862A46. Overview. There's nothing quite like that perfect launch - when the throttle responds instantly, the boat lifts cleanly, and the water smooths out beneath you. That's the feeling the Mercury Vengeance 3-Blade Stainless Steel Propeller (Part Number 855862A46) was built to deliver. It's smooth, confident, and quietly powerful - the kind of prop yo