CHANNELLOCK 480 BIGAZZ Straight Jaw Tongue & Groove Pliers didn't get their name by accident! These giant adjustable channel lock pliers have jaws that open up to 5-1/2"W - wide enough to tackle your biggest projects. Forged high carbon steel pliers have a coating to prevent rusting, 12 undercut tongue and groove adjustment channels that won't slip, and handles with CHANNELLOCK BLUE soft plastic coating for a comfortable grip.