The Klein Tools D502-12 is a 12-inch tongue-and-groove pump plier with a quick-adjust pivot that snaps between seven jaw positions and a 2-1/4-inch maximum opening. The jaws are serrated to grip round stock — pipe, fittings, conduit nuts, and large hex fasteners — without slipping under torque. The dipped handle gives a non-conductive grip and absorbs shock during heavy pulls.
It’s the wrench an electrician or plumber reaches for when an adjustable wrench can’t open wide enough or get angle on a fitting. The 12-inch length puts real leverage behind the bite, which is what matters when seating a locknut on conduit or breaking loose a corroded pipe coupling.
Klein Tools has been making hand tools for electricians and tradespeople since 1857, headquartered in Lincolnshire, Illinois. The Journeyman and Standard pliers lines — along with many of Klein’s cushion-grip screwdrivers — are forged and finished in the United States, and clearly marked as such, so you know exactly what you’re buying.
