Turning Point Propellers EX1/EX2-1315-4 Express 4-Blade Stainless Steel Propeller for 40-150hp Engines with 4.25-in Gearcase is a right hand propeller and has a 13.5-in diameter and a 15-in pitch. The Prop that put the four in Performance! Turning Point's Four Blade Hustler revolutionized the aluminum propeller market when introduced over 6 years ago. No one had ever produced a state-of-the-art Swept Cleaver design for 40-150hp applications. These props re-wrote the rules, proving that you can run a four blade that has unprecedented hole shot, handling, and rough water stability without the top-end speed loss you experience with other manufacturers-ft propellers. These Turning Point props also produced up to 46% more reverse thrust than other comparable designs in recent tests. Now manufactured in our Industry leading TP17 stainless, the Express Mach4 series is perfect for any application that demands enhanced acceleration, cornering, and load carrying capabilities. This prop series is ideally suited for watersports, sterndrive boats, tri-toons, bay boats, and any vessel that can use stern lift. It is our best upgrade of older stainless designs from the 1970s, 1980s, 1990s, and 2000s, and will outrun most newer props, including five blade ski props.