Cornerpoint sells, maintains and repairs marine gearboxes. The gearbox of a ship or offshore vessel, also called a marine gearbox, links the engine to its propeller shaft. Its function is to reduce the engine's speed (rpm) to the correct range of operational speed for the ship or offshore vessel. When a ship's gearbox is matched with the right engine and propeller, it ensures maximum reliability over an extended period of time. There are various types of ship gearboxes, namely: for single and multi-engines, for reversing gear units, and gearboxes with Power Take Off (PTO) and Power Take In (PTI).