Always Have a Propeller Wrench Handy Description SKUs Videos The Prop Master™ is the original molded propeller wrench. This 1 1/16" six point socket style prop wrench is made of high tensile strength, indestructible nylon. It is totally resistant to fuel, sun, salt water, and other chemicals. The Prop Master™ is less expensive than metal wrenches which rattle and can cause damage to your boat. However, it has plenty of brawn to get the job done. The Prop Master™ will tighten all 1 1/16" propeller nuts without slipping or stripping. (OMC, Johnson and Evinrude, - over 40 HP, Mercury - over 50 HP) High visibility color makes it easy to locate in dark boat compartments. The Prop Master™ also has a 9/16" garboard drain plug socket on the reverse side. Will not corrode in the salt water environment. Fits All 1-1/16” Prop Nuts (40hp & up) Rugged Nylon Resists Stripping 9/16” Garboard Drain Socket on Back Non-Corrosive in Salt Environment High Visibility Yellow makes wrench easy to find Custom Logos and Colors available for large quantity OEM applications. New Column New Column New Column PMW-1 PROP MASTER™ Propeller Wrench PMW-1-DP Standard Pack: OEM – Bulk 1/Box Distributor Bulk Packaged – 12/Box