With premium materials and highly evolved production processes, Turning Point has created the Express Mach3 Stainless Steel Propeller—designed to maximize the performance of your boat.Turning Point has taken the proven techniques that led to Hustler, the world's best-performing aluminum propellers, and applied them to their stainless steel propellers. Combining stronger materials, more corrosion resistance, higher gloss, and new casting technology with cutting-edge designs, Turning Point gives you the new Express Mach4 Propellers.Turning Point has completely re-designed the stainless propeller production process to bring state-of-the-art casting technologies and race-proven finish and tuning practices to their new line of Express props. Turning Points SpeedShop Blueprinting and MaxSpeed Dyno Balance Processes, a $500 option with other manufacturers, are standard on every prop.Turning Point's new proprietary stainless steel, TP17, has over 20 percent more Chromium than the competition for improved finish and corrosion resistance. This allows Turning Points engineers and designers the freedom to produce radical new designs that will help you wring the best performance out of your boat.Key Features—Turning PointExpress Mach3Stainless Steel PropellersSpeedShop BluePrint processMaxSpeed Dyno balance processesProprietary TP17stainless steel"Best in class" reversibilityTuned vents for fast hole shotPerformance tuned pitch and rake anglesNOTE:All Turning Point Propellers require both a Propeller Housing and Hub Kit. You do NOT need to purchase a hub kit if you own one of the following hub systems and it is in serviceable condition:Turning Point Propellers #502Mercury Flo-Torq IIMichigan Wheel XHSSolas Rubex RBXProp and Hub Kit SelectionFor help in selecting a prop and hub kit that best suits your application, see theTurning Point Prop Selection Wizard.