Throttle Up Propellers, Manufactures the Worlds Finest, Strongest and Fastest Propellers in the high performance marine industry. Our CNC process is unlike any other process of its kind. We begin with the Purest of Stainless Steel, referred to as "Virgin". We then heat-treat the castings in house, to meet the demands of our customers. The propellers are machined in simultaneous multi-axis mills. In turn, manufacturing propellers that are exacting, thus creating a propeller with unsurpassed efficiency, therefore speed. From CAD to CAM to machinery, we utilize the most progressive software programs and equipment available, in the market today. Throttle Up CNC Surface Propellers are available from 30P to 40P in diameters of 15" to 18" in 4 Blade, 5 Blade and 6 Blade configurations. Surface Drive propellers can be custom manufactured for applications with high horsepower levels, where most other propellers will fail. If you are looking for strong acceleration and top end this propeller delivers. Please call to order with specs, number of blades, Pitch and diameter. All surface drive propellers are delivered in a protective case.