The Channellock 432 is a 10-inch tongue-and-groove plier with a polished finish and a patented reinforcing edge along the jaw — engineering that minimizes stress breakage at the jaw base, the usual failure point when a plier is cranked hard on a stuck fitting. Right-angle laser heat-treated teeth grip better and last longer, and the undercut tongue & groove locks through adjustment positions without slipping.
It’s sized for plumbers and service techs who want the same 10-inch working range as the blue-handled 430 but with a polished chrome-finish body for wet or visible work. The PermaLock fastener eliminates pivot looseness, and the high-carbon C1080 steel construction holds up through years of torque abuse that would bend or loosen cast pliers.
Channellock has been forging pliers in Meadville, Pennsylvania since 1886 — the same small American factory, now five generations into the same family. The company is known for the blue-handled tongue-and-groove pliers that defined the category, and every tool in the core line is made in the USA from forged high-carbon American steel.
