The Channellock 410 Double Tongue and Groove Plier is the smaller sibling of the famous 420 9.5-inch plier, a 9.5-inch overall frame with a tighter 1-1/8 inch jaw capacity that fits hands and pockets the larger 420 won’t. The double tongue and groove gives five jaw positions, and the slim head reaches into tight engine bays, under-sink cabinets, and the back of dishwashers where the wider 420 head simply won’t fit.
Use it for tight-clearance plumbing, automotive hose clamps, gripping small fittings and supply nuts, holding round stock for a wrench, and any 9.5-inch tongue and groove job where a slimmer head matters more than maximum jaw capacity. The laser-heat-treated teeth bite hard without marring soft plating, and the undercut tongue and groove prevents the slip-out cheaper imitations are notorious for.
Channellock has been making pliers in Meadville, Pennsylvania since 1886 and the company still forges every plier in the same American factory under five generations of family ownership. The 410 carries Channellock’s full lifetime warranty against defects in material and workmanship.






