Twist-lock vs standard plug: Twist-lock is overkill for home use but essential on jobsites

The key difference is the blade shape — twist-lock uses curved prongs that lock into place, while standard plugs rely on friction. Twist-lock won’t wiggle loose, making it critical for vibrating equipment, generators, RVs, and jobsites. For home use, a standard heavy-duty extension cord is cheaper and less hassle.