is the original molded propeller wrench built for strength and reliability. Crafted from high-tensile, virtually unbreakable nylon, this 1 1/16" six-point socket wrench stands up to fuel, UV rays, saltwater, and harsh chemicals without wearing down. Unlike metal wrenches that can rattle or damage your boat, the Prop Master™ delivers dependable torque without the added risk.
Designed to grip securely, it tightens all 1 1/16" prop nuts—compatible with OMC, Johnson, and Evinrude (40 HP and above) and Mercury (50 HP and above)—without slipping or stripping. Its bright, high-visibility yellow color makes it easy to spot in darker storage areas. On the reverse side, a built-in 9/16" garboard drain plug socket adds extra convenience. Completely non-corrosive, it’s made to thrive in saltwater environments.